HEAT TREAT Foot Warmers are a non-toxic, environmentally friendly, odorless heat source using all natural ingredients that are non-combustible.
HOW TO USE FOOT WARMERS:
Simply open the outer package and immediately place insoles any pair of closed-toe shoes or boots. Foot Warmers are specifically designed for use inside a shoe or boot where oxygen is restricted. Do not use in ventilated type footwear. For best results, insert each insole forward to toe of shoe or boot. No trimming. No peeling. Fabric side up, white side down.
S/M: Women Shoe size 5-8 / Men Shoe size 4-7
M/L: Women Shoe size 9+ / Men Shoe size 8+
Avg. temp. 95F (35C), max. temp. 102F (39C) when used as directed. Each package contains 2 Warmers.