DESCRIPTION

Inov-8 TRAILFLY™ SPEED: Built for Speed, Designed for the Trail

Who says trail running has to be slow? The inov-8 TRAILFLY™ SPEED is here to shatter that myth — a lightweight, race-ready trail shoe crafted for fast training and racing over hard-packed and rocky terrain. Whether you’re chasing segment crowns or sharpening your tempo workouts, this shoe offers the grip, responsiveness, and natural feel to help you push the pace off-road.

Designed on a brand-new anatomical last, the TRAILFLY™ SPEED mirrors the natural shape of the foot. It hugs snugly at the heel for lockdown security, while the forefoot widens to allow your toes to splay and stabilize over uneven terrain. The result? A foot-hugging fit that keeps you confident, comfortable, and connected to the trail at speed.

Underfoot, a combination of POWERFLOW PRO foam and a BOOMERANG footbed delivers a responsive ride with exceptional energy return. Paired with a 4mm drop, the cushioning is dialed in to provide just enough softness to protect while keeping you close to the ground for agility and control.

Traction is delivered by graphene-enhanced rubber — harder-wearing than traditional compounds — and shaped into 4mm multidirectional lugs that grip, shed debris, and boost propulsion where you need it most. This upgraded outsole also offers improved performance in wet conditions, making it a go-to option for race day and year-round training.

Lightweight, precise, and purpose-built for performance, the TRAILFLY SPEED is your edge when trail running demands speed and control — not compromise.

Best For

• Trail runners looking for a lightweight, race-ready shoe for hard-packed and rocky terrain

• Athletes focusing on tempo workouts, intervals, and fast trail sessions

• Those who prefer a natural-fitting shoe that blends speed, agility, and underfoot protection

What You’ll Love

✅ Anatomical Fit for Natural Movement – Snug heel + roomy toe box = a stable, comfortable feel at speed
✅ POWERFLOW PRO + BOOMERANG Cushioning – Delivers high rebound and energy return without excess bulk
✅ Lightweight & Fast – Weighing around 270g, it's ready for tempo runs and race day
✅ Graphene Grip Outsole – Updated compound with 4mm multidirectional lugs for hard-ground traction and durability
✅ Responsive Ride with a Natural Drop – 4mm drop balances ground feel and cushioning for agile running

Key Features

• Weight: Approx. 270g / 9.5 oz

• Stack Height: Moderate cushioning with 4mm heel-to-toe drop

• Midsole: POWERFLOW PRO foam + BOOMERANG footbed

• Outsole: Graphene-enhanced rubber with 4mm multidirectional lugs

• Fit: Anatomical last with secure heel and splaying forefoot

• Use Case: Trail racing, fast-paced training, tempo runs, and rocky terrain