Flume Crewneck Baselayer - Men's


Size Guide

Flume Crewneck Baselayer

Named the overall best hiking shirt by Field and Stream, 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 perfect baselayer for hiking, climbing, skiing, or just staying warm on a cool day.

40 UPF.

Weight in ounces:
S: 7.2
M: 7.6
L: 8.0

LT: 8.6
XL: 9.0

XLT: 9.2
XXL: 9.4


Made in the USA:
Crafted in Lincoln, NH; Fall River, MA

4 way stretch for superior movement and fit
Extended length ensure coverage when active - no more exposed lower back!
Thumb loops for secure hand coverage
Raglan sleeves for superior movement
Flatlock stitched to reduce chafing - smooth on your skin
Made in the USA!
Texollini (Long Beach, CA)
91% Tencel, 9% Lycra

Wash with like colors
Machine Wash Cold
Gentle Cycle
Do not bleach
Lay flat or hang to dry

Sizing - the sizing for this product is mens

Customer Reviews

Based on 143 reviews
Holland W. (Nampa, US)
Flume 1/4 Zip Baselayer

Very soft, well constructed and warm. Nice fit that is not overly tight

Mike (Brooklyn, US)
New version/fabric is even better

I have the original version and the new one. Both great but I like to new fabric even better.

Andrew L. (Boston, US)
Great Baselayer

Breaths super well, and I like the slightly loose fit. Also resists smell well. The tall size worked great for me in Large Tall for a 6'6" 240lb guy with a longer torso and arms than legs.

Félix L. (La Prairie, CA)
Amazing Base Layer

Best Baselayer I ever bought. I tried it on a few winter hikes in the past weeks and it is both warm, and breathes really well which allows for comfort in a wide range cold and less cold temperatures.

Kevin D. (Hanson, US)
I need more

I am ashamed to admit that I love this shirt so much that I wear it entirely too many times in between washing. Embarrassing I know, but it feels so good and helps regulate my body temp so well I can wear it layered for days in a row.