BasePro Crew is a temperature-regulating first layer featuring AERIS™ 250 Insulated, 4-way Stretch fabric which quickly wicks away moisture and keeps you warm and comfortable in temperatures ranging from -5°F to 70°F. It is also treated with antimicrobial agents to prevent bacteria and odor,...

AERIS™ 250 insulation for reliable temperature control from -5°F to 60°F BasePro 1/4" ensures warmth and security in any climate Designed for comfort and long-lasting wear Four-way stretch and enhanced breathability for improved performance Sweat-wicking fabrics with antimicrobial elements to eliminate odor Size Recommendations: Male:...

AERIS™ 250 insulation for reliable temperature control from -5°F to 60°F BasePro Full-Zip ensures warmth and security in any climate Durable nylon construction for comfort and long-lasting wear Four-way stretch and enhanced breathability for improved performance Sweat-wicking fabrics with antimicrobial elements to eliminate odor...

Insulation That Adapts – Insulation that adapts to your movement, effort, and environment. With patented AERIS™ 250 insulation, they replace 2–4 bulky layers and still keep you warm even when wet. Tested from -5°F to 60°F, they’re made to perform in the toughest conditions...