For use with the Scubapro Hydros Pro BCD (Men's and Women's) as well as many other BCD models with a D-ring near the thigh. The thigh pocket with a large bellow design provides more storage capacity for diving accessories, such as dive slates, lights, marker buoys, spare mask, etc. Attaches with a clip to the BCD d-ring with a strap around the upper thigh. Large flap with quick-release buckles for added security. Comfortable to wear and super easy to access during the dive even with thick neoprene gloves on.