Back is stock at 5 meter length is our popular 1/2" and 5/8" Tubular nylon with sewn loops https://www.blackcatrocketry.co.uk/collections/rocket-parts/products/tubular-nylon-shockcord-with-sewn-loops https://www.blackcatrocketry.co.uk/collections/rocket-parts/products/5-8-tubular-nylon-recovery-harness-with-sewn-loops