The 10” x 4” Bottle Holder is designed to fit a 32oz / 1L Nalgene bottle (sold separately) or similarly sized containers. Main compartment: 10” high x 4” diameter, padded, with drainage grommet. Frontal: 6” x 3” x 1.5” with elastic retention. PALS attachment webbing: Front and sides. Attachment1: D-rings for optional shoulder strap. Attachment2: Long Malice clips (sold separately). Attachment3: Keyper quick release hook on back.