This collection of Hot Chillys men's thermal base layers offers lightweight, midweight, and mountain weight base layer and accessories for all of life's outdoor pursuits. Our men's thermal base layers are available in a body fit athletic design with 4-way stretch for a full range of movement, or relaxed fit that lies gently on the skin without binding. Engineered with performance in mind, our men's thermal long underwear will keep you dry, warm and very comfortable so you can concentrate on having a good time. With Hot Chillys thermals for men, you can conquer the coldest temperatures while still enjoying your time outdoors. We aren't out to change the world, we just want to change your underwear. Browse our selection of men's thermal base layers, long johns, and other thermals for men, or get in touch with us to learn more!
Lightweight hollow fibers embedded with permanent oxide minerals harness the body's far infrared energy to generate gentle warmth.
Active Carbon embedded into fibers provides enhanced thermal regulation and odor blocking properties.
Mid Volume for a little extra cushioning in your boot.
nylon/FRI nylon blend for strength, durability and heat with rubber and elastic for optimal resiliency
Men's Micro Elite XT Zip-T
Micro-Elite "XT" is our mountain weight, single face stretch thermal quarter zip that can also be used as a mid layer. This base layer top for men is the perfect choice for when it's really cold and layering is a must!
Durable smooth outer face for easy layering
Soft, brushed fleece backing
Sleek, performance-friendly Hot Chillys® logo rubber tip zipper
Contrast flat seam construction
Zip through collar with interior wind flap for ultimate warmth
UPF 40 protection
4-way stretch for next to skin body fit
Mountain weight warmth, body fit
10 out of 10
Mountain weight for exceptional warmth in extreme conditions
4-way stretch to hug your body for a next-to-skin fit.
Men's Peach Skins Roll T-Neck
This mock neck thermal combines the soft, light feel and strength of microfiber polyester with an interlock construction to give you warmth without weight and freedom of movement. The interlock knitting of this men's traditional roll down t-neck base layer top is like having a double layer since the two sides are technically knitted the same (face out with the backs "interlocked" together) allowing more space to trap air and more stretch than a flat surfaced fabric. Order this men's lightweight base layer today!
Features of our roll t-neck thermal:
100% Microfiber Polyester makes it light for layering
Seams set away from shoulder for added comfort
2-ply roll down neck
Moisture Transfer Fibers to move moisture away from the skin
Antimicrobial treatment to inhibit bacteria growth
Anatomically designed shape with room to move
Soft, silky hand feel makes it easy to layer over
UPF 30 protection
Turtle Neck Base Layer provides lightweight warmth with a relaxed fit
6 out of 10
Mild warmth for cool to cold conditions
Designed with a looser fit that lies gently on the skin without binding.