With The Right Gear, Getting In Your Element Is A Natural Fit. The Blazek 18 is a lightweight daypack that keeps your load stable and your back supported on day hikes or casual adventures. A simple, but effective bottom zipper adjusts the pack volume for when you don't need all 18 liters, shrinking down to 14 liters while holding the bulk of your gear higher up on your back and reducing pack sloshing. Front and back storage, including a compartment for a 2L bladder, plus compression cords help distribute gear evenly for a pack that feels like an extension of your body. Features: Variable volume allows for adjustment from 14-18L with a quick zip expansion Padded and breathable EVA back reduces heat and cushions any pressure Shoulder straps are padded and ventilated Vest inspired pack straps with three layer chest pocketry to hold trail essentials such as water, phone, sunglasses or keys Adjustable sternum strap expands for when you're breathing heavy Trekking pole connections Hydration / Soft flasks not included Specifications: Volume: 18 L / 1098 in3 Torso Size: 25-50" / 63-128 cm Dimensions (L x W x H): 10" x 6" x 18.5" / 26 x 15 x 47 cm Gender: Unisex Weight: 16.8 oz / 478 g No. of Exterior Pockets: 9 Reflectivity: Yes Reservoir Compatible: Yes Materials: Primary/Body: 100D Nylon Ultimate Direction Blazek 18L Backpack