The Field Repair Buckle is designed to permanently repair broken buckles with just the help of a screwdriver. All Sea to Summit dry bags feature Field Repair Buckles, from the lightest Ultra-Sil™ Nano™ dry sack to the heaviest Hydraulic™ dry bag. The pins used for these buckles are stainless steel and can be disengaged easily with a Philips head driver. The use of this system means you don't have to unstitch and resew a new buckle in, just remove the broken buckle and pin the new buckle in it's place. Don't let a broken buckle ruin your adventure. Be prepared and carry a Field Repair Buckle in your repair kit.