-Thick and soft plush, keep your feet warm and comfortable in cold weather or rainy days, Insulates against Moisture -Breathable, Keep your feet clean, fresh and comfortable, eliminate odor.. -Anti-slip, will not ruck up or move around inside your boots or slippers. -Great for most men, women or kids shoes, boots, sports shoes wide-fitting lace-up shoes tennis and golf shoes. Specification: Material: Fleece Thermal SizeApprox. 3522.5 x 7.8 x 2.3CM/8.9 x 3.1 x 0.9 inch 36: 23 x 8 x 2.3CM/9.1 x 3.1 x 0.9 inch 37: 23.5 x 8.2 x 2.3CM/9.3 x 3.2 x 0.9 inch 38: 24 x 8.3 x 2.3CM/9.4 x 3.3 x 0.9 inch 39: 24.5 x 8.4 x 2.3CM/9.6 x 3.3 x 0.9 inch 40: 25 x 8.5 x 2.3CM/9.8 x 3.3 x 0.9 inch 41: 25.5 x 8.6 x 2.3CM/10.0 x 3.4 x 0.9 inch 42: 26 x 8.7 x 2.3CM/10.2 x 3.4 x 0.9 inch 43: 26.5 x 8.8 x 2.3CM/10.4 x 3.5 x 0.9 inch 44: 27 x 8.9 x 2.3CM/10.6 x 3.5 x 0.9 inch 45: 27.5 x 9 x 2.3CM/10.8 x 3.5 x0.9 inch Package Includes: 1 Pair Warm Insoles Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!