JanSport, JanSport Carson External Frame Backpack (Regular, Cobalt) All External Frame Backpacks >>> External Frame Backpacks by JanSport More details and ordering info. This external frame pack combines the great weight transfer of an external frame pack with the features of an internal frame. Product Features Dual mesh water bottle pockets Curved adjustable shoulder straps Vector control hipbelt with diagonal stabilizer Extendable lid Panel access zippers User input on JanSport Carson External Frame Backpack (Regular, Cobalt) by JanSport: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines