The Cerro Torre 75:100 backpack from Lowe Alpine was construct using lightweight and super durable TriShield Grid fabric, ensuring the best possible strength to weight ratio. Whether you're on a big mountain exped or a basecamp trek, front and lower entries provides quick and easy access to your essentials. A removable 6 L hydration pack also provides the perfect storage pack for route recce's or day trips. The new Cerro Torre now features the new Axiom 7 back system. This firm, supportive and adjustable system has a rotating hipbelt and plenty of lumer support making this a true load carrying workhorse.