Deuter External Pockets SPACIOUS - Deuters large External Pockets attach to your favorite pack to give you an extra 10L of storage space COMPATIBLE - Fits any pack with side compression straps EASY TO USE - Simply clip the to the side compression straps on your bag using the pockets daisy chain webbing and youre good to go LIGHTWEIGHT - At only 8 oz per pair, these auxiliary storage bags wont weigh you down SPECIFICATIONS - Each pair weighs 8oz and offers 10L of internal volume; Each pocket measures 13 x 6 x 4 in; Made of durable Ripstop 210 and Super-Polytex with waterproof PU coating