The Adidas Terrex Swift R3 combines the light weight and damping of a trailrunning shoe with the stability of a classic hiking boots. The midsole has been designed so that the foot sits lower in the shoe in the heel area, giving you a secure fit and stability in the ankle area when hiking. The Terrex Swift R3 also has an ultra-lightweight midsole that has good cushioning properties but weighs little, so you can move fast.