It s the coolest! The Jockey Seamfree Chill Hipster s technology cools three ways: 1. Mineral-based yarns are cool to the touch to help you stay chilled when you move or get warm. 2. Quick-drying fabric wicks away moisture to help you feel cool and dry. 3. Knit-in, cotton-blend gusset enhances breathability. Pretty mesh elastic around the leg openings lies smoothly, and the flat, Seamfree construction ensures a sleek, no-line look under clothes.