Designed specifically to safely store three CR123 batteries, the CellVault Battery Storage tube from Thyrm provides a waterproof cache for small essentials that attaches to a wide variety of webbing. The tube’s generic shape lends it to storage of other items such as survival gear, first-aid kit and other consumables. Standard tactical colors, including clear, are available. Price: $20. Contact: Thyrm LLC.; thyrm.com.