Description of Merrell Fanatic - Women's Merrell to the max. To satisfy the most aggressive trail runners, we took our groundbreaker trail technology to another level, starting with a nearly stitchless but decidedly rugged upper design that includes Aegis™ antimicrobial lining. Then extended our visible, tubular Trailspring™ support to the forefoot as well as the heel to add alignment to structural cushioning. Lightness rules: from a skeletal molded arch bridge to Vibram® Feather Speed™ sole. End Uses: All season adventure racing on Features: Stability Plus Groomed Trail/Hybrid Shoe Merrell Exclusive Trail Balanced™ Last Slip Lasted Construction with EVA Insole AirMesh Upper with TPU Welded Trim Dri-Lex® Comfort Zone Lining with Aegis® Antimicrobial Nearly Stitchless Upper Design Kevlar® Lace and TPU Molded Lace Lock System Heel Securing Top Eyelet System Omni-Fit™ Lacing and Bellows Tongue with Lace Keeper Flap Ventilation and Drainage System in Forefoot Forefoot Protection Upper Design with Gaiter Hook Anatomical Ventilated EVA Footbed with Etc.® Anti-Friction Mesh Lining Trail Alignment System Dual Density Molded EVA Footframe (men) TrailSpring™ Injection TPU Structural Cushioning and Support System in Heel TrailSpring™ Injection TPU Structural Cushioning and Alignment System in Forefoot Gaiter Strap Channel at Arch Bridge Air Cushion® Midsole 4mm Sole Lug Depth Vibram® Feather Speed™ Dual Density Outsole/TC5+ Rubber Vegan Friendly Footwear Weight: 1 lb. 4 ozs.