Silktex is a revolutionary yarn developed exclusively for Grishko, using the natural fibers silk and cotton. Silk's unique insulating qualities provide warmth in the winter but help the body stay cool in the summer. Silktex has wonderful softness and stretch-ability, and does not require dry-cleaning. The legwarmers are thigh-length, with the versatility to stretch higher or lower on the leg. All Grishko knits are crafted in the USA, exclusively for Grishko.