lightweight and durable holster has a Velcro lined belt loop that pairs with the included belt so your holster and device stay exactly where you want them. This holster can also be use with your personal belt and accommodates most size belts. The elastic strap with silicone lining ensures the Toughbook S1 device will stay securely in place. This holster can be used with our optional Toughmate Mini Shoulder Strap attached to the D-rings on the back side of the holster. This holster is compatible with both the FZ-L1 and FZ-M1/B2 devices, and accommodates all Toughmate hand straps that fit on FZ-L1 and FZ-M/B21 devices.