Material: Merino Wool+Memory Foam | | Thickness=11Mm,Suitable For Loose Fitting Shoes. Footwear That Already Fits Tight Will Not Have Enough Room For These Insoles. | | The Natural Wool Insoles Helps Absorbs And Disperses Moisture,Protect Effectively Your Feet Against Cold Weather And Keep The Warmth Even Though Icy Days. | | High Density Memory Foam Materia Could Provide Cushioning Energy To The Feet To Relieve Muscle Fatigue In Feet And Legs. | | Ergonomic Design -- Is Comfortable Insole Shoe Replacement, Giving The Support For Every Pairs Of Shoes. Especially Good For Winter Snow Boots,Dress Shoes And Slippers. | | Perfect Hand Workmanship-The Wool Felt Layer And Foam Bottom Adheres Firmly To The Soles. The Fleece Will Not Come Off And Leave Lint On Your Socks. | |