Lace-Up closure The Nike ACG Ruckel Ridge was originally introduced in 2018 as part of Nike's retro revival of the popular outdoors sub-label. Designed by Tinker Hatfield and Aaron Cooper, this pair fuses the aesthetics of a hiking boot with a casual sneaker. The result is a high-top model with a suede upper, Flyknit ankle collar, and speed lacing system. Its sturdy outsole traction pattern is inspired by the hoof of a mountain goat. This particular colorway released as part of Nike ACG's Holiday 2018 lineup. It sports a brown suede upper with black and red detailing throughout.