You don’t need heavy layers to be warm. HeatFX's innovative combination of fibers provides superior warmth and comfort without bulk. These bottoms have specially engineered pockets inside the fibers to create a thermal warming effect next to your skin.
HeatFX base layer features: moisture management to keep you dry, antimicrobial for freshness, and heat retention.
Fabric content- 41% polyester/41% acrylic/18% Viloft viscose
Made in Canada