100 liter backpack. Made of 100% nylon 1000D (high resistance). Anatomical back with straps for comfort air system has made cotton the back and interiior cotton webbing that allows smoother and ventilation. Set in the chest and waist. Metal frame incorporated in the back area. Two large side pockets with possibility to separate them from the pack by cramalleras. These side pockets have the ability to turn them into small backpacks. Straps to carry bag and mat. Closure flap that extends the backpack up to 110 liters. Lower rack for dividing the backpack into two. Approximately 80 Cm altox 33 cm wide (with pockets 55 cm) x 25 cm deep.