Kith x adidas Consortium 4D 。Ronnie Fieg focused on outdoor recreation functionality, as Fieg applies his unique taste to the Response Trail BOOST. This sneaker represents the evolution of the trail shoe, as it combines technical qualities with lifestyle insights. The upper features a double-layered mesh vamp and neoprene collar with premium tumbled nubuck overlays. Fieg applies asymmetrical Three Stripes logos to the speed-lace system, which offers fast and snug lacing. This performance-driven upper is mirrored by its sole unit, as the midsole is equipped with exposed BOOST technology at the heel and BOOST foam in the forefoot. Lastly, the Continental outsole lugs are inspired by Trail King bike tires to create extraordinary grip in all conditions