Arena All Set Backpack 45LBenefit from the clever space management of the stylish arena All Set Backpack 45L that makes it easy to organize all your stuff. Featuring Aquabreathe, arena's new wet management system, it combines breathable inserts and water repellent fabrics to create an advanced ventilation system that keeps water out and your gear dry. Backpack Features: 45L capacity with efficient space management Two large main compartments for organized storage Two external