For runners who prefer to carry their water in hand, or for adding hydration capacity to the Dyna vest packs, the Osprey Dyna Handheld Hydration Bottle offers a?minimalist yet comfortable design that works on both left and right hands. You'll hardly notice you're carrying anything to begin with. Materials:. . Main: 70D x 140D Nylon Triangle Ripstop. Accent:?320Gr Nylon Stretch Mesh. Bottom:?200Gr Nylon Stretch Mesh. . . Breathable mesh wrap with soft, irritation-free contact surface. Included Osprey Hydraulics? 250 ml soft flask. Soft flask-stabilizing pouch. Ambidextrous-handed fit. Small zippered mesh pocket. Small stretch mesh shove-it pocket. Women?specific sizing and fit. Full Airmesh Hipbelt:. . Mesh-covered, perforated foam harness. Modified straight ErgoPull hipbelt closure. Zippered stretch mesh bodybelt pockets. Seamless integration with vest-pack-style fit. . . Body wrap harness:. . Adjustable and removable dual chest straps for stability. Front harness gear- and food-organization pockets. Breathable mesh wrap with soft, irritation-free contact surface. Die-cut EVA foam for larger loads. . . Dimensions:7.9 (H) X 3.2 (W) X 2.4 (D) in.. Weight:?0.11 lbs.. Imported.