THE HEAT COMPANY Insole Foot Warmers Adhesive - 5 or 30 Pairs - EXTRA WARM - Adhesive Foot Warmers - 8 Hours of Warmth - Instant Heat - Air Activated - Purely Natural – SMALL, LARGE: No. 1 since 1994 8+ hours of warm feet 100% natural ingredients THE HEAT COMPANY Official Supplier of Swiss Ski, the Austria Ski Team and Snowboard Germany! : SMALL: 3 6. 5 Extra thin fits ALL shoes : Simply open the packaging Insole Warmers activate themselves (air activated) Stick the Insole Warmers to the bottom of the socks : Ideal for all outdoor activities and also especially for ski and snowboard boots warm feet at last! : 5 Pairs