Is there a way to tighten the waist of these without completely

What kind of knot is this that joins the double half hitch sections together? My best guess is an overhand knot but that seems wrong : r/macrame

Is there a quick and better solution to tying up the excess strap? : r/ATV

How to carry a Flail around on belt/back without it dangling around? : r/ArmsandArmor

What kind of knot is this that joins the double half hitch sections together? My best guess is an overhand knot but that seems wrong : r/macrame

How can I put the vest on again? : r/Playmobil

New to serging. How to serge over these seams? : r/sewing

Is there a way to tighten the waist of these without completely taking it apart? : r/sewhelp

What kind of knots do I need? That let me adjust the length at one end of the footrest. : r/knots

i.redd.it/q3kljdtqjbza1.jpg