Built on a one-piece, perforated Regulator® airmesh hip wrap for a foundation, Patagonias new MTB-specific, 3-liter waist pack distributes weight between three zippered pockets and dual water-bottle holders, providing the stability of on-body storage with enough room for tools, extra layers and other valuables. Body made of rugged 100% recycled nylon; built for a lifetime of abuse Highly breathable Regulator® airmesh through all contact points maximizes breathability Three high-volume pockets disperse the load for increased stability Dual water-bottle holders nest between pack pockets for a bounce-free carry Deployable pad carry straps Internal organization divider Volume3 liters   Materials Body: 4.7-oz 210-denier 100% recycled nylon plain weave with a PU coating and a PFC-free DWR finish (durable water repellent coating that does not contain perfluorinated chemicals). Lining: 3-oz 200-denier 100% recycled polyester with a PU coating. Waistbelt: 8.3-oz 100% polyester spacer mesh