This is the standard XR series unisex model, for adults/teens between 110-190 lbs. Its MULTI-SIZE liner with its expandable neoprene toe, adapts perfectly to several sizes. 
It features the new IPS spring which offers:
 
A better performance
Increased comfort
New customizing possibilities (Contact Us)
A longer life span
A 2 way safety feature with a locking system
 
It has a durable hard shell boot with a comfortable, removable liner which can be machine washed and Air Dried.