Zipper closure

MOUNTAIN WEIGHT BASE LAYER - Our base layers are designed for warmth, performance (including but not limited to breathability and moisture management), and wearable comfort. The adventure is yours, we'll keep you warm and comfortable.

BODY FIT AND UPF 40+ - Designed with 4-way stretch, these fabrics hug your body for a next-to-skin fit, enhancing breathability and moisture management. Body fit garments move with you, allowing full range of motion while staying against your skin. Ultraviolet Protection Factor. Sunlight includes rays of ultraviolet (UV) radiation, and Hot Chillys products are designed to help protect you!

WARMTH FACTOR 10/10 - Ranked from Mild to Hot, the Warmth Factor Thermometer tells you how warm each of our products is. Warmth Factors 6, 7, and 8 are considered Midweight and are very popular for most cold-weather activities.

4-WAY STRETCH - Fabrics with this elastic feature will hug your body and move with you, eliminating extra bulk, providing a full range of motion, and improving performance. Nearly all our body-fit products include a 4-way stretch. Some of our relaxed fit products include a 4-way stretch as well.

MOISTURE TRANSFER FIBERS - An essential feature in all our products, Hot Chillys exclusive moisture transfer fibers (MTF) move moisture away from your body by employing hydrophobic yarns to wick away perspiration, thereby keeping you dry and comfortable.

Hot Chillys Women's Micro-Elite XT Zip-T Mountain-Weight Body Fit Base Layer