The Ultimate Direction OCR Vest has enough capacity to carry your hydration along with extra clothes and food. Made from a very durable, nylon rip-stop fabric, the OCR Vest can withstand the abuse of water, mud, and abrasion against walls, the ground, and other hazards along the course—the OCR vest that you need! Features Front bottle pocket fits up to 600ml FlexForm™ (not included) Compressible back pocket fits up to a 2L reservoir (not included) Removable water resistant phone case ("Tech Flip Pocket") with clear window at front and back allows you to use your phone and film during your race Reflective logos at front and back Specifications Volume Capacity: 5.01 L / 305.73 in3 Weight: 160 g / 5.625 oz Materials: Ultra Durable Nylon rip stop, Heavy duty stretch mesh, Mono mesh Ice Ax Loops: No Whistle: No Front Phone Pocket: Yes Reservoir Compatible: Yes Bottle Included: No Reservoir Included: No *Call branch to verify availability. Prices may differ outside Metro Manila. All published prices are subject to change without prior notice.[#header2] About the Brand [/header2][#content2] Ultimate Direction makes the most lightweight hydration packs and water belts for endurance sports, hikes, and treks.[/content2]