RAF Military Style Ballistic Nylon Strap w/ Brushed Gold Hardware. This strap is manufactured of a medium weave ballistic nylon material. Ultrasonically welded together. Floating Fabric Keeper. Hardware is Brushed Surgical Grade Stainless Steel. Single piece of nylon between your watch and your wrist. Available in 20mm ONLY. Approximately 9.7"/247mm in length. 1mm thick.