The KAILAS FUGA EX3 "Black" takes the same elite ultra-distance platform and wraps it in a triple-black stealth aesthetic built for runners who want performance without the flash. Matte black from laces to midsole, it hides trail mud, scuffs, and dust effortlessly — so you can focus on the miles ahead.

Stealth Design & Utility Engineering

Triple-Black Performance Aesthetics: The entire upper, TPU overlays, laces, and ECCEVAI midsole are finished in monochromatic matte black. The only contrast accent is the silver Vibram logo on the outsole — clean, purposeful, and race-ready.

AWS 3.0 Dual-Zone Tightening: A single unified cord feeds into two independent locking toggles. Cinch the forefoot toggle to prevent forward foot-slide on steep descents, and keep the ankle collar comfortably flexible for all-day movement.

Debris Protection & Tooling: An integrated lace-pocket on the tongue stows the toggle mechanisms cleanly, a rugged rubber toe bumper guards against rock strikes, and a 4-point gaiter attachment system locks out trail gravel and sand directly from the chassis loops.

High-Distance Performance & Ride Metrics

Max Cushion ECCEVAI Foam: A 36mm heel / 28mm forefoot stack height (8mm drop) with upgraded ECCEVAI foam delivers 20% more energy return over previous versions — dense, protective cushioning that won't pack out or cave during 50-to-100-mile ultra-races.

Vibram® Megagrip with Litebase Tech: Premium Vibram Megagrip rubber shaved thin via Litebase technology — maximum grip, minimum weight, full lug durability intact.

Tire-Tread Traction Layout: 4mm multi-directional triangular center lugs clear mud aggressively on climbs, while horizontal washboard braking blocks on the heel deliver reliable slip prevention on descents.

Widened Stability Base: To balance the tall 36mm stack, KAILAS widened the forefoot base by 4% and the heel platform by 15% into a trapezoidal anti-roll geometry — unshakeable confidence on jagged, unstable terrain.

Critical Sizing & Fit Matrix

Toe Box Length: The FUGA EX3 runs slightly long by design, leaving safe breathing room for natural foot swelling and forward-sliding during long hours on technical trails.

Width Profile: The midfoot measures a snug 92.0mm (vs. 95.7mm trail shoe average), but the toe box flares out to allow natural toe splay.

• Standard / Narrow Feet: Buy True to Size (TTS). The AWS lacing system locks down the midfoot for a precise, secure fit.
• Wide Feet / High Arches: Size up half a size (+0.5). The TPU heat-fused overlays on the engineered mesh upper provide zero width stretch over time.
• International Buyers: Reference EU sizing or foot length in CM for the most accurate fit across production batches.

Specifications