Material：100% pure fine wool
Application：
　　Wool Felt Insoles for boots and shoes keep feet warm & dry, ideal for winter activities. They add extra insulation to any of our winter & rain boots. The wool felt insulates your feet while the extra thickness absorbs moisture to keep your feet dry.
Features：
1.pro-environment
2.Comfort
3.Warmth
4.cushion,air permeability
5.And they absorb perspiration to keep your feet dry and comfy all day in your rubber footwear!