Kelty Kids TC 2.1 Kid Carrier Backpack (Backpack only, carrier not included) This is the backpack that originally comes attached to the Kelty Kids TC 2.1 Kid Carrier. Item is in used condition, please see all of the pictures in the listing for condition detail. Purchase includes the backpack in listing pictures only, carrier not included. Can be used as a kids backpack by itself or can be attached to the Kelty Kids TC 2.1 Kids Carrier. Please see listing pictures for measurement information.