Model Number: LZP-001A Brand Name: Lizeng Key Specifications/Special Features: This insole is made of PU and wool materialWool can keeps your feet warm in cold dayYou can use it in your boots shoesSeparately 2-layer can help you adjust height freelyAir cushion provides maximum cushioningPU material can ensure long time using and keeps the shapeHoneycomb design on the bottom has effect on anti slip when walkingCut lines on the back can help you trim to fit