Sturdy & comfortable to wear. Good fit with my Gewa Air 1.7 violin case. The neoprene shoulder padding prevents slipping which helps make the straps feel sturdy.
Much prefer these with the metal snap-hooks, they can swivel but stay in position far better than the straps with the plastic snap-hooks - which would twist around a lot more, so the straps were more difficult to use when putting my case on my back.
These straps with metal snap-hooks don't swivel so much when putting the case on my back - so easier to get on & off my back & generally feel better quality. Definitely worth the extra Euros for the metal snap-hooks, in my opinion.