DEVISYS ORIGINAL Ice Grips. Devisys Original anti-slip devices are the first and original anti-slip heel devices on the market. The material used for the anti-slip device is a TR rubber blend which is extremely frost-resistant. Durable hard metal studs of suitable height, similar to winter tires studs, have been cast on the outer sole. A 3M reflector placed at the rear provides additional safety for the dark and slippery winter conditions. The product is available in three sizes – M (37-39), L (40-44), XL (45-50) Material – TR Rubber 3M reflector placed at the rear 5 metal studs
