WAscender (climbing)
WBolt (climbing)
WCarabiner
WCarbide lamp
WClimbing harness
WDry suit
WDynamic rope
WGrigri (climbing)
WLine marker
WMaillon
WPetzl
WPetzl Croll
WPetzl Stop
WPigeon Mountain Industries
WRubber band
WSingle-rope technique
WWellington boot
WWetsuit