Wow repeat each exercise after equivalent weighted exercise and the difference of pump and shake is second to none allowing you to push to failure further without worry of injury. The holes around the toes were just too open for me and running around hard at summer camp seemed like a recipe for disaster. I use them mainly when I?m doing home chores and when walking the pooch. I had no idea. Good shoe rack. They also have a rubber ring around them that helps keep them in place. Ordered my normal size and fit as expected. - The four bike rack can be easily switched to two bike rack. On top of that, I love that they added waterproofing and touch features to the earbuds, it makes it so much easier to switch songs instead of having to use my phone. They are slightly padded and are super comfortable.