Self-Bondage Armbinder (1", Nylon Webbing) strap If the zipper pull is

If the zipper pull is having to force together either sides of the zipper track

we would recommend getting between a 32" and 34" skirt (really tight would be about 30")

but still be careful when zipping the sack closed

Here it is

This bondage system is way too much fun

Self-Bondage Armbinder (1", Nylon Webbing) strap If the zipper pull isThis nylon webbing harness is designed with adjustable straps to fit just about any size. If a single model fit is desired, the straps can be trimmed easily as is shown here. The webbing itself is one inch wide and has a breaking point of 600 pounds, so it is extremely secure yet comfortable to wear. The shoulder stapes are attached to a single 2" metal ring in the middle of the back. The straps are stitched strongly in place and are dually adjustable