There's fast, and then there's UA Flow fast. Lightweight, rubberless, and durable, our newest cushioning gives a close-to-the-ground, grippy feeling of speed as you train to go all out. Specifications: UA WARP upper uses tape lines that act as mini seatbelts to provide lockdown & lightweight containment Rocker-inspired design & forefoot rigidity gives you a natural roll to build momentum efficiently EVA sockliner cradles the foot for enhanced step-in comfort Lightweight foam midsole provides extremely soft landings with great energy return Supercritical UA Flow is softer, lighter & more responsive Full-length Pebax® plate adds support & stability for a snappy ride Rubberless outsole is super-durable & grippy for a smooth, natural footstrike