Name: Midweight - Union Suit 100% Merino Wool
Brand: Minus33 Merino Wool Clothing
SKU: 4920TRS
Price: 169.99 USD
Availability: InStock

Minus33 Merino Wool Clothing Midweight Wool Union Suit. The Union Suit is a historical undergarment that has been around since 1868. The Union Suit was first created in Utica, NY. Our Union Suit features a drawstring waist, plastic buttons on the top half, and flat snaps on the bottom half.

Minus33 Merino Wool Clothing Midweight Wool Union Suit

Midweight - Union Suit 100% Merino Wool - Minus33 Merino Wool Clothing

$169.99

Shipping calculated at checkout.

Color — True Red

True Red

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

Our Guarantee

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

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Midweight Details

Our Midweight styles have all the same natural qualities as our Lightweight Merino Wool, with greater insulation. Minus33 Merino Wool Clothing is perfect as a base layer for a day on the slopes or as an emergency pullover when a cold front rolls in just before you summit.

man kayaking in the fall wearing a midweight crew neck

235 g/m2

Interlock Knit

18.5 Micron

100% Merino Wool
UPF Rating 50+

Compare Weights

man hiking in the winter wearing midweight base layers

RECOMMENDED FOR

Activities: Hiking, Camping, Lifestyle, Snowsports, Hunting, Fishing.

Seasons: Spring, Fall, Winter.

High Activity Temperatures: 0°F to 30°F

Low Activity Temperatures: 30°F to 60°F

Learn about Layering

why merino wool

two people sitting next to a river wearing merino wool

Moisture Wicking

Minus33 Merino Wool regulates the amount of moisture on your skin by absorbing any moisture or sweat on your body. Then, the absorbed moisture evaporates out of the fabric into the atmosphere.

Anti-Microbial

Merino Wool fibers naturally reject any bacteria in moisture or sweat as it is wicked away, so foot fungus and smelly odor will not be a problem while wearing our products.

woman hiking with her dog crossing a river

Insulates When Wet

Wool will absorb up to 30% of its weight in moisture without feeling wet or clammy. If you do get wet, wool will insulate you better than cotton or polyester materials.

Fire Resistant

Merino Wool insulates against high temperatures and does not readily catch fire. If it does, it self-extinguishes. When Merino burns, it doesn’t melt and stick to the skin like synthetic fabrics do.

woman doing yoga on top of a mountain in merino wool base layers

UV Protection

Don’t worry about sunburn on a sunny day summiting a peak. Lightweight layers have a UPF rating of 25. Midweight and Expedition have a UPF rating of 50+.

Renewable

Merino Wool has a low environmental footprint and naturally returns to the elements. Shear a merino sheep in the morning, and in the afternoon they’re happily nibbling their way towards renewing next season’s clip.

Learn about wool benefits

TOTAL EASY CARE

MACHINE WASH AND DRY

Total Easy Care (TEC) Merino apparel is designed for today's busy lifestyle. Total Easy Care Merino garments are all machine-washable, and are suitable for tumble drying.

Even after frequent laundering they retain an 'as new' appearance. They won't shrink, lose their shape, fade or color-bleed. They remain soft and comfortable for the life of the garment.

Learn More

My Favourite Go-To

I wear this for long distance nordic skating, snowboarding down couloirs & other high alpine descents, under my drysuit on the river in winter, and numerous other activities that demand a great warmth to weight ratio. I have two of these, and they are hands down the best midweight garment I have ever had the pleasure of owning. I love the buttons instead of a zipper (please never change this). The thumb loops make entry into my drysuit or other outer layers incredibly simple. I would definitely recommend against wearing any bottoms under these, doing so renders the button relief portion useless. I would highly suggest wearing a micro or lightweight top in extreme cold, but honestly that's not necessary for most of what I do since I'm moving a lot. On a side note, everyone who sees it immediately inquires where to get it, I'm not sure how many have decided to put down the cash, I would say if you're contemplating this versus an individual top & bottom, get this!

I know it's hard to trust a review that doesn't have cons. I haven't had an experience yet that would warrant one, then again I've had my first one for about 2 months if I recall correctly. If I had to be really nit-picky, I'd say it's a downside that it's only in red, I'd love to see a version in black.

Bishop,

We are ecstatic to hear that you are really happy with our 100% Merino Wool Union Suit - Midweight, and that its a conversation piece. We will pass your color recommendation along to our product development team.

Thank you for taking the time to leave a review!

-Jeannie T.

Great piece of kit

Great garment for cold weather pursuits. Fairly light and compressible for the weight of wool used. My only gripe would be the use of buttons instead of a zipper, but it is only a minor inconvenience in all fairness. The buttons hold well and I cannot feel any noticeable heat leak when using this appropriately as a baselayer. Overall great product for the price. Oh, and a black color option would be nice as well. Keep up the good work.

Instant classic!

First thing I put on in the morning! Perfect weight and a great fit. Fantastic part of the kit, thought it was a bit of a whim, but quickly became my go-to. Couldn’t be improved!

Incredible Base Layer

When working outdoors throughout the year sweat management during the winter months is sometimes problematic. My new Union Suit base layer negates the fluctuating temperatures and I have zero cold chills created from sweating. One of my best gear purchases ever. Well done Minus 33!

Camp Attire

Not only is this union suit nice feeling on your skin but it is very warm and comfortable hanging around the camp.

Kim,

Thank you for taking the time to leave us a review on the Union Suit! Its so great to hear that you're enjoying wearing it around camp!

Best,

-Steven D

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