TST TST (Thermo Shield Technology) is a state of the art solution that provides the perfect protection level for digital equipment while creating an extremely lightweight product. It is featured on the important areas of the bag that are subject to shock. DP Buckle Kata's unique Dual Purpose buckle positions your bag straight on the body at the perfect angle for comfortable carrying and easy camera access. Either connect shoulder strap using the clips or by threading the strap through the diago