At first the fit is a little tight on my pinky toes, however, I have plantar fasciitis and these shoes haven?t caused any pain in my heels or big toes. As you can see in the images - the bases attach to the aero cross bars and are secure and do not slide or roll during use, they have a rubber pad that the yak sits on to both help keep it form sliding back and forth during wind load and braking and also to cushion it. I was unpleased because the color was off between what I received and the photo online, but the company was quick to rectify the issue and they have fixed the photo online to better reflect the product. I?ve been wearing Birkenstock?s for years. I wish they came in 1/2 sizes! Installation was easy with a drill and a torpedo level; two screws and its up. This fits the PS5 controller exactly. And of course, the rose gold color with that splash of glitter is adorable without being over the top. The platform gives them more cushion than the classics, etc. I actually bought these speakers to listen to videos and audiobooks (and some occasional music), and its just so damn perfect for this.