Nike ACG Ultrafly Trail
Colorway: Light Crimson/Summit White/Summit White/Pure Platinum · Style code: HF5668-600 · Release date: June 20, 2026 at 10:00 AM ET · Price: $260 · Availability: Available now
Where to buy: Noirfonce · Tracked at 9 retailers
More colorways: Nike ACG Ultrafly Trail (HF5668-300) · Nike ACG Ultrafly Trail (HF5668-003) · Nike ACG Ultrafly Trail (HF5668-101) · Nike ACG Ultrafly Trail (HF5668-400) · Nike ACG Ultrafly Trail (HF5668-700)
The pale heel of the Nike ACG Ultrafly Trail exposes the ZoomX foam beneath its bright upper. Light Crimson/Summit White/Summit White/Pure Platinum pairs red mesh, laces and lining with oversized pale Swooshes that extend toward the toe. Fine lines sweep around the forefoot, then straighten along the rear panels. White triangular ACG marks sit above the protruding heel cushioning, while red rubber outlines the darker tread underneath.
This trail-racing version uses a full-length carbon-fiber plate with less stiffness than the original Ultrafly’s plate. Its mesh upper is designed to let water drain, and the heel foam is left unwrapped. Vibram Megagrip rubber covers the lugged outsole, with separate dark tread sections along its center. The stated heel-to-toe drop is 8.5 mm, and the listed weight is approximately 287 grams in a men’s U.S. size 10. Its U.S. list price was $260 as of September 15, 2026.