When it comes to submersible packs and bags, organization can be a challenge. With the Thunderhead Submersible Lumbar Insert, you'll put an end to rummaging through piles of disorganized boxes and accessories to find what you're looking for. Three adjustable, padded compartments provide impact protection for fly boxes and camera gear alike. Lightweight, padded design for protectionDrop-in design for quick assemblyTwo adjustable dividers included for three possible compartmentsCompatible with Thunderhead Submersible Lumbar Pack