Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino
Micro Weight - Women's Wool 1/4 Zip Woolverino

Micro Weight
Women's Wool 1/4 Zip


Regular price$79.99
Shipping calculated at checkout.
Size chart


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

Women's Clothing Size Chart

Size USA Size Chest (in) Waist (in) Hip (in) Shirt Length (in) Inseam (in)
XS 2 32-33 24-25 34-35 23.5-24.5 26-29
S 4 to 6 34-35 26-27 36-37 24.5-25.5 28-30
M 8 to 10 36-38 28-30 38-40 25.5-26.5 29-31
L 12 to 14 39-41 31-33 40-42 26.5-27.5 30-32
XL 16 to 18 42-43 33-35 43-44 27.5-28.5 30-32
XXL 20 to 22 44-45 35-37 44-45 28.5-29.5 30-32
XXXL 24 to 26 46-47 37-39 46-47 29.5-30.5 30-32

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.

Hip: Measure the circumference around the fullest part of your hips.

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.

Fit Types

Athletic Fit

Regular Fit

Relaxed Fit

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.

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Our Guarantee
woman walking to the lake with paddle board wearing woolverino micro weight ash gray v-neck woman paddle boarding wearing ash gray woolverino micro weight v-neck


Woolverino's Core Spun Technology brings you a merino garment that is durable, athletically fitted, and high-performing. Warm when you need it. Cool when you don't.

Micro Details

Micro weight gives you a feather-light option. Micro is ideal as your base layer, underwear, or on its own when the temps heat up. Merino’s moisture-wicking properties keep you cool when you’re on the move. Core Spun yarn provides extra durability while still offering merino's super soft, insulative, and moisture wicking properties next to the skin. Nylon inner core offers strength, elasticity, resiliency, and durability. Merino Wool outer sheath provides insulation, moisture wicking, and UV protection.

145 g/m2

Jersey Knit

17.5 Micron

84% Merino Wool
UPF Rating 20

Compare Weights


Activities: Hiking, Camping, Lifestyle, Snowsports, Running, Biking.

Seasons: Spring, Summer, Fall, Winter.

High Activity Temperatures: 45°F to 75°F

Low Activity Temperatures: 60°F and up

Learn About Layering

Why Merino Wool?

infographic of woolverino corespun yarn

Core Spun Technology

Core Spun yarn provides extra durability while still offering merino's properties next to the skin. The nylon inner core is wrapped with Merino Wool and a touch of spandex for stretch.

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.

merino wool tshirt drying in the sun


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.

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+.

Australian merino wool sheep


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. 



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.

Customer Reviews

Based on 10 reviews
Gary Shiffman
Warm in a San Franciso Summer

I bought this for my daughter for a backpacking trip. My wife borrowed it for a trip to see friends in the Bay Area and loved it. Light, comfortable, and warm -- a perfect mid-layer.


Thanks for the review! We're happy to hear that your daughter and wife love the Micro Weight - Women's Wool 1/4 Zip Woolverino is warm and comfortable and perfect for a mid-layer.

Jeannie T.

Myriam Mackey
Amazing and perfect fit

Soft, light material but so warm


We are happy to hear that you are liking the fit of your Woolverino Women's Wool 1/4 Zip - Micro Weight.

-Jeannie T.

Casey T.
Good, but short not as good as the other products

The shirt is comfortable and I wore it Nordic skiing as well as around the house a couple times. I received the lightweight xs crew neck shirt for Christmas and wanted this 1/4 zip for skiing. It is hard to describe why, but immediately upon receiving this shirt it seemed different as if from a completely different, but similar producer. I assumed this shirt would be similar to the crew, but it is shorter than the other shirts. For example, I am wearing high waist jeans and this top rolled up above the jeans. The arms are good length, maybe a bit long, which is normal since I am actually a petite size.


Thank you for taking the time to write this review. We apologize for any disappointment that you may have with the fit of your Minus33 Liberty 1/4 Zip. We have a new fit coming out in the summer of 2022 that may suit you better. If you would like to contact us to initiate a return please call 603-968-3351 and Customer Service Representative will gladly assist you.

-Melinda W.

Ling Hu
XS is suitable

I am 5'2'' with 99 LB, XS is suitable to me, the length is supper! But the true RED is not red color I expected exactly like Moncler company, and this shirt looks thin, not as shown in the picture. This is my first time purchase from Minusm33.


We thank you for your insight. If you are not pleased with the color of your Minus33 purchase, please contact us so we may assist you further.

-Melinda W.

Marni Matyus
High quality, almost perfect

This is a really nice layering piece. Comparable or better than any other brands I have tried.

However, I found it sized small compared to my midweight tunic, which would be OK since I wanted to wear it as a base layer. But I ultimately returned it because it is not as long as my midweight crew.

I really enjoy a top that stays tucked in, covers my bum, and doesn't expose skin when I raise my arms

Customer service was exceptional & I look forward to comparing the length of this one to other light or micro weight tops