100% Acrylic. These ribbed knit legwarmers are 27" long and designed to reach just above the knee with a close fit. Made of soft acrylic that resists pilling and retains its original shape wear after wear. The toe and heel openings on these legwarmers are reinforced with elastic for a comfortable, secure fit. These luxurious legwarmers are perfect to wear over pointe shoes or ballet shoes and keep your ankles, calves, and knees warm for long hours of class and rehearsal. Made in Guatemala. Original Eurotard legwarmer. FITTING GUIDE: One size fits most.