• [SELF HEATING INSOLES PRINCIPLE ] :This special designed self-heating insoles, when you are walking/moving by convert the heat from your body which higher than the environment temperature a lot in winter and keep the heat into the insoles' special designed materials. It is lab tested. Please note it is perfect for Cold environment/Winter/Spring/Autumn.
• Super cushioning latex material inside ,extra soft and comfort to relief feet pain and disease.We choose Latex but not ‘Memory foam’ as it is 100% natural,and extremely suitable for insoles- 5 degree hardness is the best insoles to support and soft for your feet.
• Great for cold weather environment,persistance to keep your feet warm.Shock absorption and wet absorption material. Keep constant temperature for your feet. Comfortable to relieve pain of your feet.
• Fit for Trainers,Work Shoes,Walking Boots,Running Shoes,Casual Shoes,Slippers,Loafers,Machine washable. 30 days money back warranty .These comfort insoles are the best gifts to bring warmth and health to your family ,friends,gril friend,boyfriend,colleagues,teachers in Valentine's Day,Birthday ,ect.