BuckleSafe now makes it possible to lock side-release buckles that are found on many top-loading backpacks and other bags. Straps can be tightened but not be loosened once locked. The included TSA approved padlocks mean even checked luggage can be locked, as security agnets in airports can open and relock the BuckleSafe during inspection, using secured tools. 

Tech Specs

• Fits standard 1" / 25mm single side adjustable side-release buckle.
• 2 x BuckleSafes and 2 x 22mm solid brass TSA padlocks per pack.