Not nearly as much, as you'd expect, because the construction is much stiffer and there are other support pieces (sliders, torsion cups) that prevent them from stretching much.
They seem to loosen up around the joints more than actually stretching much. If something was too tight I'd exchange it rather than expect it to get looser.
KeS
They seem to loosen up around the joints more than actually stretching much. If something was too tight I'd exchange it rather than expect it to get looser.
KeS