Flume 1/4 Zip Baselayer - Women's


Size Guide


Named the overall best hiking shirt by Field and Stream in 2021 and 2023, the Flume is a blend of Tencel (made from trees!) and spandex.  Tencel is naturally wicking, naturally odor resistant, thermo-regulating, and crazy comfortable. The ¼ zip adds a bit of style for your après hike or ski activities ensuring comfort on the mountain and style at the watering hole.

40 UPF.

Women's Flume Crewneck

Men's Flume 1/4 Zip

Men's Flume Crewneck

Weight in ounces:
XS: 5.5
S: 6.2
M 6.8
L 7.1
XL. 7.7
XXL: 8.0

Made in the USA
Crafted in Lincoln, NH

4 way stretch fabric for superior movement and fit
Extended length to ensure coverage when active - no more exposed lower back!
¼ zip for better venting when required
Thumb loops for secure hand coverage - layering warmth when you need it!
Raglan sleeves for greater movement
Flatlock stitched to reduce chafing - smooth and comfortable on your skin! 

Fabric:  91% Tencel, 9% Lycra (Texollini, Long Beach, CA)
Zippers - YKK, Macon, GA

Wash with like colors
Machine Wash Cold
Gentle Cycle
Do not dry clean
Do not bleach
Tumble dry low or lay flat to dry

Weight in ounces:
XS: 5.5
S: 6.2
M: 6.8
L: 7.1
XL: 7.7
XXL: 8.0

Customer Reviews

Based on 163 reviews
John S. (Ravena, US)
New go-to baselayer

These are amazing for hiking, my new go-to layer. 180# and 5'11" and the Large is perfect, although wear XL for their mid and outer layers.

Chris M. (Somers, US)
Great top

Outstanding base layer. Buying second top bc they are so useful

J.C. (Shrewsbury, US)
Love it

Awesome quality, super comfortable, very capable. And, ah, somehow also extremely flattering if you happen to have that dad bod build. I use it all the time!

Tina D. (Chichester, US)
Base layer

Love my Flume Crewneck baselayer. Very soft material and keeps me warm on my hikes.

Kevin D. (Marshfield, US)
Favorite Piece of clothing

Not much else to say beyond the title. This is my second Flume, first crewneck, but the Flume shirt in any variety is literally my favorite piece of clothing I own. Super comfortable, versatile, stretchy yet fitting, never smells, can be layered with anything.

I need one of every color.