1Lint + TPR material, lint has good warmth retention, soft and thick, comfortable to wear. TPR material has good resilience and wear resistance. 2The doublelayer heightening pad is connected by a buckle, which is stable and does not slip off. 3Detachable combination, optional insole height, more comfortable to wear. 4Sweatabsorbent, skinfriendly, elastic, comfortable and close to the feet, suitable for many occasion. 5Can be freely cut according to the size you need, convenient and quick, intimate and practical.