ICETRED HTD - Heel Traction Device - Universal SizeICETRED HTD Heel Traction Device. Incredible traction not only on ice or snow but also when transitioning to ashpalt and concrete. Tough durable rubber maintains it's flexibility in extreme temperatures. Unique rubber formulation provides more stretch ensuring a tight and secure fit to footwear regardless of size or type. Velcro strap easily secures to any type of footwear regardless of size. Unique heel pad shape forms naturally to footwear to ensure