The Oakley Seeker Rc Hydra Backpack is Water-Repellent and Sustainably Manufactured, It is a Backpack That Stands Out Above the Rest. It Features a Whopping 13 Liters of Storage in a Slim, Streamlined Silhouette, with a Super Spacious Main Compartment Armed with an Organizer Sleeve and a Custom Hydrapak Bladder. Store your Sunglasses in a Microfiber-Lined Exterior Pocket and your Tools in a Mesh Pocket on the Left Shoulder Strap. Even your Helmet is Tidy: Slide It Into a Secure Mesh Slot That Keeps It Close After Riding. We'Ve Got your Back Covered with Eva Foam Padding for Added Comfort. With So Many Features, This Rugged and Adventurous Backpack Lets you Focus on Riding, Not your Stuff.