Nike ACG Ultrafly Trail "Hyper Crimson" HF5668-801

If your runs take you off the pavement, this pair is built with that in mind. The Nike ACG Ultrafly Trail “Hyper Crimson” returns with smart updates that focus on comfort, control, and confidence over long distances. It’s made for uneven ground, changing conditions, and miles that test your legs.

Underfoot, ZoomX foam does the heavy lifting. It’s springy, responsive, and tuned for trail use. The heel features an unwrapped foam setup, giving each step a smoother feel as you move from strike to toe-off. The ride feels natural. Consistent. Easy to trust when fatigue starts creeping in.

A full-length carbon-fibre plate runs through the sole. This version feels softer than earlier editions, which helps with stability on technical paths. Rocks, roots, and uneven terrain feel easier to manage without losing momentum. The outsole trims weight while still delivering strong grip as the distance adds up.

The upper is built with real trail conditions in mind. Lightweight materials keep airflow moving, while the structure stays durable enough for rough use. Water drains quickly, so shallow streams and wet patches won’t slow you down. Your feet stay comfortable even when the weather turns.

Visually, Hyper Crimson brings heat. Bright tones cut through the ACG aesthetic, making the shoe stand out while staying true to Nike’s outdoor roots. It looks fast. Purposeful. Ready for action.

This Ultrafly Trail suits runners who want dependable cushioning and steady control without unnecessary bulk. It’s equally suited to long training runs or challenging weekend routes.