I had previously purchased the Tube 50's which have a traditional forefoot and tubes only in the heel. I do like them and when the 100's in black and white dropped in price decided to try them. The 100's look and feel better then the 50's when intitially put on. The ankle collar has better padding, and the color scheme looks great. For walking around in and for general weight lifting type activity these are great and for the price I paid would rate them a 5/5. Its the running performance that has me dropping them to an overall 3/5 though.

Running for me was a no go. I think the biggest reason for that is that the front tubes do not run all the way across and are filled in, in the middle of the forefoot. If you look at the picture Amazon provides of the shoe's sole, you will notice the forefoot has two different lengths of "tubes" that run across it seperated by a small gap. The shorter tubes are hollow on the inside, however the longer tunbes are not hollow all the way across and right down the center of the whole forefoot they are filled in (about and inch per tube). The sides of the longer tubes are however hollow and I think this is what causes discomfort for me when running. I tend strike heel to midfoot and to run on the outside edges of the foot. The tubes are collapsing on the outside but not in the center, which only exagerates that outside roll for me. I could feel the slight instability when I first put them on and ran. With-in a mile I had shin splints and with-in 2 had to stop running and remove the shoes. I was on a treadmill at home and replaced them with my normal shoes and the shin splints eased up right away. I have previously run in my K-Swiss 50's with zero issues, so for me at least adding the forefoot tubes wasn't helpful and if they were providing any spring back type energy it was defeated in my case by the shin splints they caused.