- Size: 41 • High-quality material: The soft 8 mm memory foam layer provides long-lasting cushioning and support for the feet, absorbing leg pressure and keeping your feet comfortable. • Non-slip and breathable: The memory foam absorbs the pressure from your legs and provides great support throughout the day. The surface fabric is breathable, helping to reduce odors and keep your feet dry, as well as having non-slip properties. • Versatility: The memory foam in the heel and forefoot provides additional cushioning and shock absorption, reducing pressure on the foot and knee, and offering durability and comfort. • Easy to change: The two-pair package makes it easy to change insoles, making your boots and shoes more comfortable. The stiffness of the insoles allows them to be easily put on and taken off when changing shoes.