The AquaStow from Osprey adapts to carry around your waist or across your shoulder with the cross strap attachment. An adjustable velcro closure fits a variety of water bottle shapes and sizes up to one liter.
Adapts to carry around the waist with built in 20mm strap
Velcro wrap closure to hold up to a 1 liter water bottle
Attaches easily to any pack via a cross shoulder strap attachment system