Made of a durable Vinylon fabric, this frame bag is mounted with wide Velcro straps. As part of the S/F (Specialized / Fjällräven) collaboration lineup, you can rest assured this product's quality is just as impressive as its looks. This Large size is long enough for many tent poles. - Top panel with plastic reinforcement, sides and bottom with foam padding - Waterproof liner without seam sealing: this product is not 100% waterproof in continuous rain - Strong Velcro tabs - Small item pocket on the inside - Weather-resistant cable port on the front panel