The Mountainsmith Dart TLS (Technical Lumbar System) is an ultra-lightweight and slim profile sport pack that is ideal for trail runs and fast hikes. With reflective piping, side energy gel pocket, perforated airflow foam padding and one BPA-free water bottle included, you'll be darting around in no time. The innovative Lumbar Control Point⢠pad locks the pack into your lower back region for added stability. Made from 450d Reforgeâ¢, our 100% recycled PET - Same performance, comfort and durability you've come to trust, but reducing our impact on the planet one bag at a time.Features: Diamond airmesh foam with DWR anti-sweat finish Lumbar Control Point⢠pad Perforated EVA foam for increased breathability One 22 oz. opaque LDPE bottle included (BPA Free) Foam insulated water bottle holder Bright yellow lining promotes visibility Neoprene ring inside bottle holster for additional security MP3 headphone port Energy gel stash pocketDetails: YKK® Zippers Bar tack reinforcements 3M⢠Reflective PipingMaterials: 450d ReForge⢠PET RipStop body fabric (100% Recycled) 210d Duramax⢠Ripstop Nylon 210d RipStop LinerDimensions: 40.5 x 17.75 x 5 cmVolume: 0.45 LCapacity: Up to 1.7kgWeight: 0.2 kgFit Range (Waist): 16" to 56" Colours Available: Asphalt Grey Heritage Black - Twillight Blue - Salsa Red - Golden Yellow -