Asics' 15-50 cross-country spikes are sport-specific. While the GEL-Sonoma MT GTX borrows from that design, it's built to handle both rugged trails and urban sidewalks. The sneaker boot silhouette uses tooling from the first two GEL-Sonoma trail shoes, providing all-day cushioning and excellent traction, while a Gore-Tex membrane keeps feet dry. Rendered here in a grey-on-grey colorway, it's finished with a colorful, grippy outsole.