Run faster, jump higher, move further... embrace the power of gravitational energy with super-charged Powerisers! When the boss told our product testers they were for the high jump, there were a few worried faces. Luckily for them, he was talking about the new Powerisers - the amazing shoe attachments that turn even a gentle jog into an extreme sport. Wearing a pair of Powerisers is like having enhanced, super-strong muscles built into your feet.