Superfeet Run Pain Relief Max Insoles For runners who suffer pain from repetitive stress, the Superfeet Run Pain Relief Max Insoles is the perfect solution, offering you mild to moderate support in every step. The main cause for pain in some runners is from a direct result of repetitive stresses from hitting the ground hard. To counteract this, the insole has various protective features, shielding the sole and keeping the legs feeling healthy. A deep heel cup is in a supportive shape, which works to minimise stress. Independent heel stabilisers also protect the back of the foot, by shaping to the foot and relieving it by absorbing impacts. Superfeet's Evolyte carbon fibre stabiliser cap offers the sole responsive and effective weight defying support. As well as this the foam used is therapeutic, cushioning and protecting from heel to toe, with particular concentration on vulnerable spots. The foam also reduces friction and rubbing from irritating the skin. D