AGR Advanced Gear Research: XBP Expandable Bottle Pouch.
The XBP Expandable Bottle Pouch is designed to attach to MOLLE-compatible bags and packs. It has TPU-840D nylon composite backing and comes with two TacTie PJC5 Polymer Joining Clips for modular attachment. The XBP fits a wide range of common bottles including the 32 oz. Nalgene widemouth bottle.