It's wicking, warming and ergonomic qualities make it a versatile, year-round, long-sleeve shirt. Wear it as an active fit baselayer in the winter, or as a standalone during workouts and recreation throughout the spring and fall. FEATURES: Omni-Heat® thermal reflective Omni-Wick® 4-way comfort stretch Antimicrobial treatment protects this product from bacterial growth Ergonomic seaming Flatlocked construction Center Back Length: 29" FABRIC: 85% polyester / 15% elastane stretch jersey Omni-Wick® Anytime OMNI-WICK®: High-Performance Wicking Fabric