Ready to go with your vest, the OneTigris T-Rex Tactical Asssault Pack adds more storage room for your essential gear... "A patrol/trekking flat-pack designed for attachment to plate carriers and chest rigs, or used simply as a small daypack for daily commutes. Featuring MOLLE compatibility and hydration bladder compatibility, it's compact but ruggedly built for missions in multiple landscapes. Tear off the rear breathability padding and use the snap-buttoned straps to fix the pack onto your tactical vest, and utilize the webbing at the front, sides and bottom to strap on multiple pouches to maximize your load. Use the loop-surfaced side inside the pack for hook backed pouches and holsters, and keep small items organized in the interior rear pocket."