The AirZone Active 18 is the perfect backpack for hazy days on the mountain. It is a lightweight, ventilated daypack that keeps you cool on day hikes. This unisex daypack features the AirZone Lite carrying system, which puts comfort and breathability first.AirzoneAttached mesh back system that conforms to the contours of the body for maximum breathability, as well as using less mesh. Material - Material description: 70 % nylon, 30 % polyester Dimensions - Dimensions in cm (H x W x D): 52 x 27 x 21 cm Features - Attachment options for equipment: Material loop(s) on the base Weight - Backpack weight: 765 g Volume - Backpack volume: 18 l Rain cover - Included in delivery Straps - Chest strap - Features hip strap: width adjustable - Features chest strap: with signal whistle - Hip strap Division - Number of external compartments: 4 Functions & features - Features: Hydration system retrofittable Closure - Closure position: from top (toploader) - Closure type: zip Pockets & compartments - External pockets: - Front pocket for quick access - Two side pockets for water bottles made of stretch material - Internal pockets: - Main opening with zip - Internal security pocket with zip Main information - Range of use: Trekking - Type: Daypack - Back system type: Back mesh - Carrying system: Airzone Details - Details: - Chest strap with whistle.