Sea to Summit Field Replacement Buckle - Patent pending buckle with stainless steel pins can be used to replace broken buckles in any situation. The two-pin side release buckles are a direct replacement for nonadjustable buckles such as those commonly found on dry bag closures and V-pull style waist belts. The one-pin side release buckles replace single-adjustable side release buckles, like the closures found on most top-loading backpacks.