100% Merino Wool Expedition Heavyweight Zip Off 3/4 Pants

mens expedition weight zip off 3/4th pants Simply drop your shell pants, unzip the sides, and shed (or add) this layer when the time is right. Taking off your boots is now a thing of the past. This 3/4 length bottom gives you room in your boots without the bulk, yet still keeps you toasty warm with the power of our Expedition weight merino wool. Color-coordinated hook and loop closures make putting it back on quick and easy.

100% merino wool mens zip off base layer bottoms

Expedition - Chugach Men's Zip-Off 3/4 Bottoms 100% Merino Wool - Minus33 Merino Wool Clothing

100% Merino Wool Chugach Men's Zip-Off 3/4 Bottoms heavyweight base layers

mens zip off base layer bottoms zip off 3/4th pants

mens 100% merino wool zip off 3/4th bottoms velcro sides

a guy zipping up his zip off pants as well as velcoring them on the side

a guy showing that you can zip up these 100% merino wool bottoms

man out hunting putting on his zip up bottoms over base layer bottoms

man out in the snow zipping up his zip off bottoms that are heavyweight and 100% merino wool

$159.99

Color — Black

Black

WEIGHT	MICRO	LIGHTWEIGHT	MIDWEIGHT	EXPEDITION
GSM (g/m²)	145	170	235	400
Microns	17.5	17.5	18.5	18.5
UPF Rating	20	25	50+	50+
Seasons*	Summer, Spring, Fall, Winter	Summer, Spring, Fall, Winter	Spring, Fall, Winter	Late Fall, Winter
Low Activity Temps (F)*	60+ Degrees	60+ Degrees	60-30 Degrees	30-0 Degrees
High Activity Temps (F)*	75-45 Degrees	60-30 Degrees	30-0 Degrees	0 Degrees and Below
Outdoor Activities*	Hiking, Camping, Lifestyle, Running, Biking, Snowsports	Hiking, Camping, Lifestyle, Running, Biking	Hiking, Camping, Lifestyle, Hunting, Fishing, Snowsports	Hiking, Camping, Lifestyle, Hunting, Ice Fishing, Snowsports

Size chart

Measurements

Please note, measurements refer to body size, not garment dimensions, unless otherwise noted. Measurements are in inches.

Men's Clothing Size Chart

Size	Chest (in)	Waist (in)	Sleeve Length (in)	Shirt Length (in)	Inseam (in)
XS	33-35	24-27	30-31	25.5-26.5	25-27
S	35-38	28-30	31-32	26.5-27.5	28-30
M	39-41	31-33	32-33	27.5-28.5	29-32
L	42-45	34-36	33-34	28.5-29.5	32-34
XL	46-48	37-40	34-35	29.5-30.5	32-35
XXL	49-52	41-44	35-36	30.5-31.5	34-35
XXXL	52-54	45-49	36-37	31.5-32.5	34-36

Men's Big and Tall Clothing Size Chart

Size	Chest (in)	Waist (in)	Sleeve Length (in)	Shirt Length (in)	Inseam (in)
MT	39-41	31-33	35-36	30.5-31.5	32-34
LT	42-45	34-36	36-37	31.5-32.5	33-36
XLT	46-48	37-40	37-38	32.5-33.5	33-36
2XT	49-52	41-44	38-39	33.5-34.5	34-36
3XT	52-54	45-49	39-40	34.5-35.5	35-37
4X	54-57	49-52	36-37	32.5-33.5	34-36
4XT	54-57	49-52	40-41	35.5-36.5	35-37
5X	57-59	52-54	36-37	33.5-34.5	34-36
6X	59-61	54-56	37-38	34.5-35.5	34-36

How to Measure

Chest: Measure the circumference around the fullest part of your chest, underneath the arms.

Waist: Measure the circumference around the natural waist, near the belly button.

Sleeve: Measure from your center back neck, to the elbow, to the wrist.

Shirt Length: This measurement refers to the approximate size of the shirt back length, from the neck to the bottom hem.

Inseam: Measure from the center of the crotch to the end of the ankle.

Shop Men's Clothing Shop Men's Big and Tall Clothing

Fit Types

Athletic Fit

Regular Fit

Relaxed Fit

Fits best as: Base Layer

Skin tight, slim, compression style fit. Wear this layer first and add on top of it if needed.

Fits best as: Base Layer, Mid Layer

True to size, standard fit with a little bit of room to breathe, but not too baggy. Perfect on its own or with a t-shirt or thin shirt underneath.

Fits best as: Mid Layer, Insulating Layer, Outer Layer

A little more room than you would find in a Regular fit. Enough space to fit 1-2 layers underneath.

Fit FAQs

What if I am between sizes?

If you are between sizes, we recommend sizing up or down based on what fit type you would prefer, and based on how you plan to wear the piece. Our knitted merino is stretchy and you could realistically go with either size. If you would prefer an Athletic fit, size down. If you prefer a Regular or Relaxed fit, size up.

Do I need to size up/down to layer?

Generally, no, you do not need to purchase a different size than normal. Our base layers are designed to fit right into your current layering system. They are also designed to work with other products in our line, too. You may wish to adjust your sizing if you plan to wear one of our garments in a way that it is not intended, if that's the case please feel free to contact our customer service team for help.

Does your clothing run true to size?

Yes, our clothing runs true to size and is sized similar to most other American brands. If a sizing discrepancy is discovered, you will see fit advice in that product's specific listing.

Not sure what size or fit type you need?

Learn more about layering systems and how they can help you choose. Still need help? Contact our customer service team for personalized advice.

Quantity

In stock, ready to ship
Backordered, shipping soon

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This one-of-a-kind mid-layer bottom is perfect for long days on the hunt. How many times have you started off freezing cold, only to be sweating up a storm once mid-morning hits? Simply drop your shell pants, unzip the sides, and shed (or add) this layer when the time is right. Taking off your boots is now a thing of the past. This 3/4 length bottom gives you room in your boots without the bulk, yet still keeps you toasty warm with the power of our Heavyweight merino wool. Color-coordinated hook and loop closures make putting it back on quick and easy.

Fabric

Fiber Content: 100% Merino Wool
Knit: 400 g/m² Heavyweight Interlock Knit
Microns: 18.5 Micron Fibers
UPF Rating: 50+
Total Easy Care: Machine Wash and Dry
Wool Source: Australia
Imported.

Features

3/4 Length: Perfect for boots, less bulk around the ankle
Flat Lock Seams: Prevents Chafing
Zippers: Fully backed with fabric, YKK zipper pulls with cord extension
Hook and Loop Closures: Allows for easy securing of the waistband while zipping and unzipping
Color-Coordinated: White hook and loop closures and zipper pull extension on the right side, black on the left side, for quick matching of the correct sides
Fly: Product does have a fly opening
Gusset: Large gusset allows for ease of movement
Layer Type: Mid Layer, Insulating Layer
Fit Type: Regular - Standard fit with a little bit of room to breathe, but not too baggy
Model Features: The model in black is 5'10 / 150 lbs wearing a medium
Runs True to Size
Weight: Size Large = 16 oz. (454 grams)
Style #: 7112

Uses

Ideal Seasons: Fall, Winter
Activities: Hiking, Camping, Fishing, Hunting, Snowsports
Temperature Recommendations: 0°F and below while active, 0°F to 30°F while inactive - Learn More

Care

Washing and Drying Instructions - Learn More

Turn Inside Out, Fasten All Hook and Loop Closures and Zippers
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!

Product Story

Chugach [chew-gatch]

Chugach State Park and Chugach National Forest both reside in Southeastern Alaska. Both are quite large and have plenty do to, whether it's hunting, skiing, hiking, fishing, or just taking a scenic drive. Chugach State Park is located just several miles from Anchorage, while Chugach National Park spans much of Alaska's coastline along the Gulf of Alaska and Prince William Sound. These wonderful parks are hugged by the Chugach Mountains to the north.

Our Guarantee

30 Day Satisfaction Guarantee - Return Policy
1 Year Warranty
Extended 2 Year Warranty with Registration - Learn More
Excellent Quality Customer Service

Heavyweight

Men's Zip-Off 3/4 Bottoms

100% Merino Wool

$159.99

HEAVYWEIGHT MERINO WOOL

400+ g/m
100% Australian Merino Wool
Machine Wash & Dry
UPF 50+

Our heavyweight Merino wool is a durable, insulating layer built for long days outside. Whether you're ice fishing, working outdoors, or tackling winter chores, this fabric keeps you warm and comfortable without overheating. Layer it up or wear it on its own in the cold. You can learn more about our different Merino fabric weights here.

Black / M

I want to be warm, but my socks are very pretty

Exactly what I needed for skiing. Boot cut at the right height. I used to have an amazing pair of wool knickers and these fit that gap. Note the dong peephole. You need an outerlayer to remain chaste.

amazing

i spend a lot of time outdoors in the northeast, recreational as a cyclist and work wise.

as part of cold weather user demographic, minus 33 gear is top of the line for me. there seems to have been a lot of forethought and research and testing to go into this product. the 3/4th chugach thermal is a serious piece of equipment.

the thermal 'skin' almost has a thickness reminiscent of a wetsuit. the merino wool is light and moisture wicking in balmy warm weather up to the fifties or low sixties fahrenheit. the 3/4th's design also makes cooling and air flow to regulate body temps during strenuous activity or warm weather.

paired with thick padded hiking socks, the thermals make temps tolerable all the way down to bitter 20 degree F cold and wind chill.

for miserable wet, cold and windy conditions, these make the situation comfy. sleeping in them, you will really feel the soft stretch and thickness of the merino wool. although personally there is no guarantee you will not take them off in the night because they are THAT WARM. amazing product.

Paul,

Thank you for taking the time to leave such a detailed and positive review for our Expedition Chugach Men's Zip-Off 3/4 Bottoms. We are thrilled to hear that our product has exceeded your expectations and has proven to be a valuable addition to your outdoor gear collection.

Our team at Minus 33 invests a great deal of effort into researching and testing our products to ensure they meet the highest standards for our customers. We are pleased to hear that the 3/4 Chugach thermal has met your needs and provided you with excellent performance in a variety of weather conditions.

We appreciate your support and look forward to serving you in the future.

Best regards,
Minus 33 Customer Service Team

Love these for layering while hunting

This is the product that converted me to Merino and this company. I have multiple tops and bottoms - lightweight, mid weight, heavy weight, and expedition... all great products.

Lenny,

Thank you so much for taking the time to leave us a review! We're thrilled to hear that our Expedition - Chugach Men's Zip-Off 3/4 Bottoms have been a game changer for you while hunting. We pride ourselves on using 100% Merino wool for optimal comfort and performance. Thank you for being a loyal customer and for trusting in our products.

-Jeannie T.

Even better than hoped for

Having been a skier for over 50 years, I’ve worn a lot of base layers and know of none other this heavy. When it is cold, this expedition weight is welcomed. Just wore these for two days skiing in New Hampshire. I was pleased in every way. Note: I’m unsure the fly is necessary.

Fly Navy,

Thank you for your feedback! We're thrilled to hear that our Expedition - Chugach Men's Zip-Off 3/4 Bottoms exceeded your expectations. Our goal is to provide high-quality and functional base layers for all types of outdoor activities. We appreciate your loyalty as a skier for over 50 years and are happy to hear that our expedition weight kept you warm during your recent skiing trip in New Hampshire. As for the fly, we understand your uncertainty. We will take note of this and consider it for future improvements. Thank you for choosing our product and we hope to continue providing you with excellent gear for your adventures.

Jeannie T.

Heavyweight Men's Zip-Off 3/4 Bottoms 100% Merino Wool