The vaude triset 254 backpack is a fantastic pack ideal for day trekking and exploring as it has a comfortable ventilated back system and plenty of versatile storage space for carrying all your outdoor gear with you the triset range features vaude s aeroflex full ventilation suspension system which has a large ventilation space between the mesh frame and the pack to ensure plenty of ventilation to keep your back and load carry nice and comfortable this coupled with the adjustable padded straps