The S/Lab Belt is your body-hugging, no-bounce utility belt that will turn you into a trail-racing superhero. This ultra-lightweight hydration belt sits on your hips and stays there so you can focus on your run. Multiple storage pockets give you quick and easy access to your hydration and race-day essentials to keep you moving fast on the trails. Details: Pockets and compartments: Two convenient mesh side pockets are breathable and easily accessible for any gear you need on the go, one zippered pocket, one expandable mesh pocket Hydration: Compatible with 500 ml soft flasks (flasks sold separately) Opening and closure: Top quality, very durable and reliable YKK zippers Fabrics: Darlington mesh, four-way stretch main fabric Carrying system: Pole holder elastic loops Weight: 45 g