The trail running phenomenon continues to steamroll the sneaker scene, and now adidas have created an UltraBOOST that you can take off road. The UltraBOOST Guard promises 'comfort and performance for the trail, packing all the energised cushioning that first put BOOST on the map.Essential in any trail shoe, you'll notice an extra-grippy Continental outsole down below to keep you vertical while embracing the great outdoors.