The roof bars itself look very sturdy and good quality. Have had some since the 90s. I have been ordering this brand, well. Teva would do great with a half size. The ear piece is very good at blocking out sound however. The ability to fold the shelves and hooks are awesome. Putting on the wall as easy as 1,2&3. I use this in combination with my power tower. I purchased these for running and general walking around town. Soft soles, a little cushion to the bottoms, and tapered top that keeps them on my feet without being too right around the ankles.