The ONLY Irish dancing Poodle/Bubble sock that is made from Cool Max, shape retention Lycra, has a hand linked seamless toe construction and re enforced heel. Because Dupont's Cool Max wicks perspiration away helping to keep the foot dry, your foot is less likely to slide around inside the sock and cause blisters. Dans-ez Winners are blissfully ridged toe seam free! Only Dans-ez Winners have our special flat hand linked SEAMLESS toe construction. A big advantage in preventing blisters. Shape retention Lycra guarantees our Winners will never lose their shape or go baggy. Lycra, helps to support your arch and prevent foot fatigue. IT ALSO HELPS STOP YOUR SOCKS FROM SLIDING DOWN!!