The Sonic 150 tight provides comfort under a technical ski pant and moves with you through every bump and turn with ease. Built with 7% stretch and an engineered mechanical stretch for custom fit. Fabric93% Polyester, 7% Elastane 150 weight Dri-Core? Heathered Ultrastretch fleece; 93% Polyester, 7% Elastane 150 weight Dri-Core? Ultrastretch fleeceFlat seaming for maximum comfort Reflective logo Shaped seams for fit Lapped fly