Repurposed spinnaker sails zig zag stitched onto 1" white webbing. The lighter colors may have some may have some marks from the darker part of sail, all part of authentic sailed sail. Some leashes available: Spinnaker Leash
Matching leashes available Spinnaker Leashes.
For adjusting the size, work the excess through the collar with the clip loose on fabric. Next center clip in excess loop. Do not try to slide or force clip. It has teeth on inside to grip into the material for a secure hold.