Name: Nimbus Cat Merino Wool Socks - Micro Cushion Boot
Brand: Minus33 Merino Wool Clothing
SKU: NIMBUSS36S
Price: 24.99 USD
Availability: InStock

33% of all MWOBS sock sales supports the Observatory’s work to advance weather & climate research, conduct innovative science education programs, and promote the heritage of the Mount Washington region.
Discounts cannot be applied towards charitable socks.

nimbus the summit cat on a pair of merino wool socks. A perfect gift for animal lovers.

Merino wool cat socks that support MWOBS Nimbus the summit cat

Person wearing hiking boots and socks with a cat design on a rocky mountain nimbus cat socks merino wool.

Loki the dog holding a pair of merino wool nimbus cat socks

Nimbus cat summit socks merino wool socks that support MWOBS

Nimbus the summit cat on a pair on New Hampshire made merino wool socks

$24.99

STYLE

Nimbus

Summit

Color — Nimbus Gray

Nimbus Gray

Size

Size chart

Socks Size Chart

Shoe Size	Men US	Women US	Kids US	Euro	UK
S	3-5.5	4-6.5	3-4.5	34-37	2-4.5
M	6-8.5	7-9.5	5-7	38-41	5-7.5
L	9-11.5	10-12.5	-	42-45	8-10.5
XL	12-14.5	13+	-	46-49	11-13.5

Shop Socks

Quantity

In stock, ready to ship
Backordered, shipping soon

This certified product has been tested against a list of over 1,000 harmful substances, including PFAS.

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Introducing the Nimbus Cat Sock - High atop Mount Washington, where the winds roar and the weather reigns supreme, a fearless feline named Nimbus calls the Observatory home. Much like its namesake, the Nimbus Cat Boot Sock is equal parts tough, cozy, and ready for adventure. With light cushioning underfoot, they keep your paws (err, feet) happy without the bulk, while natural merino fibers regulate temperature and fight off odor.

33% of all Mount Washington Observatory Nimbus Sock sales sold through Minus33.com supports the Observatory's work to advance weather and climate research, conduct innovative science education programs, and promote the heritage of the Mount Washington region.

Please Note: This sock helps support one of our non-profit partners therefore discounts cannot be applied towards it.

Fabric

Fiber Content: 62% Merino Wool, 22% Nylon, 15% Stretch Nylon, 1% Elastic
Total Easy Care: Machine Wash & Dry
Wool Source: Australia
Made in New Hampshire, USA!

Features

Height: 10" Boot Sock - Almost to mid-calf, this style is designed to be slightly above the standard 10" boot height.
Weight: Microweight
Cushion: Full Cushion along the bottom of the sock wicks away maximum moisture keeping your feet cool and dry.
3 Zone Elastic: Elastic on the arch, ankle, and welt opening help keep your sock in place throughout the day.
Vented Zones: Venting on the top of the sock lets your feet air out and stay cool.
Heel/Toe Plating: Extra durability on the heel and toe keeps socks long-lasting.
Seamless Toe: Smooth, comfortable finish on the toe
Wool/Nylon Yarn: Our Mountain Heritage sock collection uses wool/nylon yarn technology, which creates a durable sock with high wool content.
Weight: 62 grams (Pair)
Style #: S36

Uses

Ideal Seasons: Spring, Summer, Fall, Winter
Activities: Everyday Wear, Hiking, Camping, Biking, Fishing, Hunting, Snowsports

Care

Washing and Drying Instructions - Learn More

Machine Wash Cold: Gentle cycle with like colors
Detergent: Mild or wool-specific
Tumble Dry: Low heat
Storage: Place in an airtight container when not in use for long periods of time
Do NOT Use: Fabric softener or bleach!

Guarantee / Warranty

30 Day Satisfaction Guarantee - Return Policy
5 Year Manufacturers Warranty - Learn More
Excellent Quality - Customer Service

Benefits of Merino Wool

Moisture Wicking
Merino wool is the best fiber to regulate moisture. It does this by absorbing sweat from your skin and releasing it into the air. Whether you're hiking, running, biking, on the job, or just relaxing at home, our wool helps keep you dry and comfortable all day long.

Soft & Comfortable
Merino wool fibers are much finer than traditional wool, creating a luxuriously soft feel that won’t itch or irritate your skin. Comfortable enough for everyday wear and gentle enough for sensitive skin, it’s a natural choice for underwear, base layers and next-to-skin comfort.

Highly Breathable
Merino wool’s unique structure allows air to circulate freely, helping to regulate your body temperature in both hot and cold weather conditions. Whether you're layering up for winter or staying cool in summer, Merino keeps you comfortable by letting your skin breathe.

Anti-Microbial
Merino wool naturally resists odor-causing bacteria, keeping you fresher for longer. No lingering smells, even after extended wear. Perfect for travel, outdoor adventures, and everyday life.

Insulates When Wet
Merino wool can hold up to 30% of its weight in moisture without feeling wet or clammy against the skin. Unlike cotton or synthetic fabrics, it keeps insulating when damp, making it a smart choice for unpredictable weather and high-output activity.

Fire Resistant
Merino wool is naturally fire-resistant and self-extinguishing. It will not melt or stick to your skin like synthetic fabrics. A trusted option for first responders, campfire safety, or any high-heat environment.

UV Protection
Our Merino wool clothing helps protect you from the sun’s harmful rays, with different levels of UPF based on fabric weight:

Microweight (145 GSM): UPF 20
Lightweight (170 GSM): UPF 25
Midweight (245 GSM): UPF 50+
Heavyweight (400 GSM): UPF 50+

These natural UV-blocking properties make Merino wool ideal for long days or the beach or above treeline.

Renewable and Sustainable
Merino wool is a natural, biodegradable fiber with a low environmental footprint. Grown by Australian Merino sheep and shorn seasonally, it is a renewable material that supports responsible farming practices.

Weather on mount washington

ALL MWOBS PARTNER SOCKS

Mount Washington, located in the White Mountains of New Hampshire, is famous for its extreme and unpredictable weather. Both summer and winter visitors must be prepared for rapidly changing weather, as conditions can shift from calm to life-threatening in just minutes. The mountain’s harsh environment also serves as Minus33's testing ground for our Merino Wool clothing and accessories.

Standing at 6,288 feet (1,917 meters), it is the highest peak in the Northeastern United States. The mountain's unique geography, sitting at the intersection of major storm tracks, makes it one of the windiest places on Earth.

On April 12, 1934, the Mount Washington Summit Observatory recorded a summit wind speed of 231 mph (372 km/h), which held the record for the fastest surface wind speed observed by man for decades. The combination of high winds, freezing temperatures, and heavy snowfall makes it a challenging environment for hikers and researchers alike.

Temperatures on Mount Washington can vary dramatically throughout the year. The average annual temperature is around 27°F (-3°C), and even in summer, temperatures can drop below freezing at night. The mountain holds the record for the lowest temperature ever recorded in New Hampshire at -50°F (-46°C) in 1885. Wind chills can be even more extreme, often reaching -100°F (-73°C) or lower during winter storms.

Snowfall is abundant, averaging around 280 inches (711 cm) per year, and snow can fall even in summer. Whiteout conditions and sudden storms make the mountain notorious for its deadly weather.

Mount Washington’s extreme climate has earned it the reputation of having the "World’s Worst Weather." The Mount Washington Observatory, located at the summit, continuously monitors conditions, providing valuable data for meteorologists and climate scientists. Despite the dangers, Mount Washington remains a popular destination for hikers, climbers, and tourists, drawn to its stunning views and challenging conditions.

Click here for the current weather conditions on Mount Washington

MORE WOOL. LESS SYNTHETICS. REAL COMFORT.

renewable & SUSTAINABLE

Merino Wool has a low environmental footprint and is naturally biodegradable. Shear a merino sheep and they’re soon happily nibbling their way towards renewing next season’s coat.

MWOBS ROCKY Mountain hiking men's ladie's base layer minus33 merino wool

Comfort & Performance

No man-made fiber can provide all the benefits that wool naturally does. Merino Wool is naturally super-soft, breathable, thermo-regulating, anti-odor, fire-resistant, UV protective & more.

mwobs sock makers new hampshire made in USA John Lawson Glidden Family Owned and Operated

Made with pride in NH

As NH natives, the white mountains have been in our blood our whole lives. That’s why we design our socks to fulfill a variety of outdoor needs. We make a sock for every adventure.

5 stars: 18 (86%)
4 stars: 3 (14%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Nimbus Gray / S

My wife and daughter-in-law both love the warmth & comfort

My wife and daughter-in-law both love the warmth and comfort of these great sox.

Nimbus Gray / M

Primary Activity: Hiking

Very Comfortable Socks

These socks are very comfortable and warm. Like the OEKO-TEX® STANDARD 100 Certification. The cat is a very cute design. Lastly, the donation to of the Mt Washington Observatory’s work to advance weather & climate research, conduct innovative science education programs, and promote the heritage of the Mount Washington region is appealing.

Height: 5'6"

Weight: 128

Primary Activity: Casual / Lifestyle

In addition to be a great American-made sock,

In addition to being a great American-made sock, they are warm, wear well and of course, feature Nimbus, the Mt. Washington cat! I gave a pair to a cat-lover friend who's husband is allergic to cats so that she can always have a cat nearby.

Nimbus Gray / M

Primary Activity: Casual / Lifestyle

Cute socks

If you are on the low end of the size range, I recommend sizing down. These are great socks, but they're the wrong height for me. I have large calves and these are just a bit too tight for my liking. I'll stick with the mini crews. The socks are high-quality and I love that these support the Mount Washington Observatory!

Nimbus Gray / M

Height: 5'5''

Weight: 140

Primary Activity: Casual / Lifestyle

I wear a woman's size 9 regular width shoe

I wear a woman's size 9 regular width shoe. I bought a medium size sock. Once I got the socks on they fit fine and we're comfortable, but getting them on and off was a little difficult. They have no give to them, don't stretch at all to get them over foot

Great socks to wear and supporting MWOBS too!

Nimbus Gray / L

Primary Activity: Casual / Lifestyle

Awesome

Awesome Quality!

Thank you for your kind words! We're thrilled to hear that you are loving the quality of our Nimbus Cat Merino Wool Socks. We strive to provide our customers with the best products possible, so your feedback means a lot to us.

Nimbus Gray / L

Primary Activity: Hiking

Warm cozy socks that stay up, and I like

Warm cozy socks that stay up, and I like the support for the Mount Washington Observatory. Will buy more!

We're so happy to hear that you are enjoying your Microweight Cushion - Mount Washington Observatory Nimbus Boot Wool Socks! We take pride in creating warm and cozy socks that stay up, and we are thrilled to know that they are providing support for the Mount Washington Observatory. Thank you for your support and we can't wait for you to try more of our products. -The Minus33 Team

Nimbus Gray / M

Height: 5'2"

Weight: 160

Primary Activity: Workwear

Great socks, lovely and warm and well made

Great socks, lovely and warm and well made. I ibought a pair as a gift for a friend, our winters here in NH can be challenging. The kitty image is a plus too, I think you should make more clothing with the kitty's image!

Thank you so much for your kind review! We're thrilled to hear that you love our USA made Microweight Cushion - Mount Washington Observatory Nimbus Boot Wool Socks! Keeping you warm and cozy during our harsh NH winters is our top priority. We also appreciate your suggestion to incorporate more kitty designs - we'll definitely keep that in mind! And we're excited to share that our USA made socks now come with a fantastic 5 year warranty. Thank you for choosing our mountain heritage socks. Stay warm!

Nimbus Gray / S

Height: 5 4

Weight: 140

Primary Activity: Casual / Lifestyle

Warm comfy kitty cat

Warm comfy feet. A litte too tight for my calf so I just don't pull the socks up all the way

Thanks so much for the 4-star review! We're glad to hear your feet are staying warm and comfy- that’s exactly what we love to hear. 😊 Sorry to hear they’re a bit snug around the calf; we’ll be sure to share that feedback with our product team. Thanks again for your support!

Nimbus Gray / M

Primary Activity: Casual / Lifestyle

These socks really exceeded my expectations

These socks really exceeded my expectations. I bought them to support MWOBS and because we love Nimbus, but they instantly became our favorite socks. They're both soft and sturdy, and they fit great! Really happy with these socks.

Dear valued customer,

Thank you for taking the time to leave such a kind review for our Microweight Cushion - Mount Washington Observatory Nimbus Boot Wool Socks Mountain Heritage. We are delighted to hear that they exceeded your expectations and have become your favorite socks. We are also grateful for your support of MWOBS and for choosing our product. We strive to provide both comfort and durability, and we are thrilled to know that they fit great for you. We appreciate your feedback and hope to continue exceeding your expectations in the future.

Best regards,

The Minus33 Customer Service Team

Nimbus Gray / M

Primary Activity: Workwear

Great socks

Feels real soft, keeps my feet dry and work great, they say up real good. Great socks.

Thanks for the awesome review! We’re glad your socks are keeping your feet comfy, dry, and ready to tackle anything the day throws at you. Sounds like they’re earning their keep!

Nimbus Gray / L

Your Feet Will Appreciate the Cushioning

My feet appreciate the cushioning. Although I've never been a front of the pack runner, the socks give me hope that in my dreams I am.

That is fantastic feedback! We are so happy to hear your feet are appreciating the cushioning in the socks.
And hey, we believe in those dreams! Every run is a win, whether you're at the front of the pack or just enjoying the journey. Keep putting in the miles. You've got this! -Sierra S

Nimbus Gray / M

Primary Activity: Casual / Lifestyle

these socks are comfortable, well made and

these socks are comfortable, well made and promoting a great cause.

That is wonderful to hear! We are so glad you're enjoying the comfort and quality of your new socks. It means the world to us that you appreciate the great cause they support- it's a mission near to our hearts! Thank you so much for your support! -Sierra S

Nimbus Gray / M

Wonderful socks plus Nimbis is on them

Wonderful socks. Plus Nimbus is on them. They are so comfortable And i love the cushioning. Great purchase.

Hi Brenda,
Thank you for your kind review. We're so glad you love our Microweight Cushion socks featuring the Mount Washington Observatory Nimbus design. We strive to provide comfortable and high-quality products, and we're thrilled to hear that you are enjoying the cushioning. Thank you for choosing our product, we appreciate your support!

Nimbus Gray / M

Primary Activity: Casual / Lifestyle

These socks are wonderful

These socks are wonderful!

Nimbus Gray / M

I gave a pair of these socks to my 91 year old mom

I gave a pair of these socks to my 91 year old mother, she wears them to bed and find them very cozy.

Hi Sandy,

Thank you for taking the time to leave a review for our Microweight Cushion socks. We're thrilled to hear that your mom is finding them cozy for bedtime.
We hope they continue to provide her with warmth and comfort. Have a great day!

Kindly,

~Sue
Minus33 Team

Primary Activity: Casual / Lifestyle

Our Nimbus socks are so warm and so cool!

Our Nimbus socks are so warm and so cool!
Thanks to Minus 33 for supporting the MWObservatory!

Hi Roy,
Thank you for leaving such a great review for our Microweight Cushion socks and Mount Washington Observatory Nimbus Boot Wool Socks. We're thrilled to hear that they kept you both warm and cool. And thank you for supporting the MWObservatory with your purchase. Happy adventuring.
Best,
~Sue
Minus33 Team

Primary Activity: Biking

As a cat family; cat dad, cat mom and cat kids,

As a cat family; cat dad, cat mom and cat kids, plus avid hikers. We had to have Nimbus socks for daily use and hiking The Whites. Great socks!

Thank you for the awesome review! We love hearing that the whole cat family is enjoying Nimbus socks—both on the trails in the Whites and for everyday comfort. Happy hiking (and purring) from all of us at Minus33! ⛰️

Height: 5'7

Primary Activity: Casual / Lifestyle

Everything you love in wool sock!!

Picked up my Nimbus socks today and could not be more in love! Not only are they comfortable and feel like a dream on my feet, they are adorable! Already got a compliment on them.

Thank you for your pawsitive review of our Microweight Cushion - Mount Washington Observatory Nimbus Boot Wool Socks Mountain Heritage! We're glad to hear that you're purr-oud of your new socks and that they've received a meow-velous compliment already. We hope they continue to keep your feet cozy and stylish on all your adventures!

The Cat's Meow

These socks are purr-fect! 🐱

Thank you for your pawsitive feedback on our Mount Washington Observatory Nimbus Boot Wool Socks! We're thrilled to hear that they're the cat's meow for you Happy to keep your feet warm and cozy on your outdoor adventures! Happy Adventuring!

MWOBS SOCKS

Micro Cushion Nimbus Cat Socks Mount Washington

Socks Size Chart

Features

Uses

Care

Guarantee / Warranty

Benefits of Merino Wool

Weather on mount washington