These running tights are designed to help you stay cool in the heat. The soft and stretchy tights are made of breathable, quick-dry fabric to move moisture away from you. Mesh side panels provide ventilation. Strategic ventilation Climacool keeps you cool and dry in warm weather Ready for evening runs Reflective details help you be seen Fitted fit is one size down from regular sizing for a tight feel Three-quarter length 83% polyester / 17% elastane doubleknit XS I1 SN S I1 SO M I1 SN L I1 O2