MASK BACK STRAP
The elastic back strap was invented by Leon Paul and was then adopted by the FIE and included on all masks as standard. Replacing your elastic back strap is important and should be done yearly to ensure the elastic and Velcro are in good condition.
保罗产品是使用180mm*55mm的松紧带使用在所有的面具产品除了29和29A。