This bags all about functionality - boasting a modest 25 litre capacity, it's plenty for long day excursions, and it's built to provide a vessel for your belongings, with comfort and pure practicality. Being super lightweight and comfortable, with both chest and waist straps, you'll barely feel it's on your back. Our new Tech explorer is hydration bladder compatible. Water-resistant fabric, none the less has a detachable waterproof rain cover. Zippered internal valuables pocket. Key hook. Elasticated mesh side pockets. Low-profile ventilated back panel. Padded adjustable shoulder straps. Adjustable waist and chest straps with reflective accents.