Altra Paradigm 6 Running Shoes The Altra Paradigm 6 Running Shoes offer high levels of support, without the bulky aesthetic associated with stability shoes. These shoes utilise Guiderail technology, which provides support throughout your stride, helping to negate injury on longer efforts. Designed in conjunction with Altra’s elite athlete team, these shoes deliver maximum cushioning for a plush, comfortable strike. An array of technologies helps enhance the performance of these shoes. The wide, Foot Shape Toe Box allows your toes to spread out and relax, offering exceptional stability whilst climbing and descending. Innerflex grooves promote flexibility, which in turn enhances speed, while the Balanced Cushioning Platform encourages correct running form.