After 4-5 years of usage, i just learned by myself that the back strap retainers (U-shape plastic slide) had to be close to the metal dent (pin) for the strap to stay attached. Or else the back strap would come loose on some rough terrain and the dent would turn forward and release from the pin-hole. goodbye snowshoe under 2 feet of snow. Being Quebecois, those snowshoe made me swear a lot but no more will they! :D Thanks for the good product. They were not expensive and are the best around town.