I've got the flip flops and I can't praise them enough. Now I don't believe for one second that they toned me up BUT I used to get terrible lower back pain when out walking not to mention pain on the soles of my feet from bad shoes. All off this completely disappeared when I was wearing my tone-ups.
I've ordered s pair of the trainers and a pair of boots - all half price in the littlewoods sale... Hoping they're just as good!
Ps sorry this post is a little late!
I have a pair of Therashoes which are the same as Skechers. I found out about these from the MBT website. I bought them from sportsdirect.com for £35 and tney are leather. I usually have pain under my left heel, but when wearing the Therashoes there is no pain and I feel as if I'm walking on air.
As with the Skechers, the sizing is wrong. I normally wear a size 6, in Therashoes I'm a size 7 and in Skechers I'm a size 5 (fitflops).