Men's Retro British Martin Causal Genuine Round Toe Lace-Up Waterproof Combat Boots PU Leather Import Rubber sole The mouth of the shoe is flexible and easy to wear. Soles are very soft and can bend, curl. And anti slip, The shoe pad is made of linen, summer wear not hot, breathable. This product is wearing comfortable,like wearing shoes on the cotton,and light and soft. Vulcanized construction for comfort and durability