You should ask them...but as I see it the huge wrist strap keeps the Biomex in place, under your palm. When you fall most of the shock shoud travel up those two "tails" and dissipate there and along your forearm, while your wrist is kept from overextending by the velcro strap. I wanted new gloves with added protection, I don't think any wristguard can save you every time from a fracture.....but they should help.
2015/16 -3- Kirkwood days
Arbor A-Frame 158 2009-10
Jeremy Jones Hovercraft 156, 2011/12
Subaru WRX 06