Stay-put compression with on-arm storage and lightweight performance. Technical Features High-Intensity Compression & Anti-Slip Design: Special high-compression elastic with 30% spandex delivers strong muscle support; upper arm jacquard elastic and specially engineered anti-slip cuff prevent any upward or downward movement during aggressive arm swings. Light Compression Technology: Targeted light compression improves blood circulation, reduces arm muscle fatigue, and boosts overall athletic performance mile after mile. Convenient Energy Gel Pockets: Dedicated pockets on both arms allow quick, mid-stride access to fuel. Seam-Free Construction with Reinforced Bar-Tack: Seamless bonding minimizes friction and irritation; reinforced bar-tack stitching adds extra durability and security for long-duration use. Prominent Reflective Markings: Eye-catching reflective accents enhance visibility and safety for low-light, night, or early-morning runs. Fit & Function Ultra-Secure, Stay-Put Fit: Engineered to lock in place. Ultra-Compact & Packable: Folds down to the size of a cookie when not in use—slips easily into a pocket, race belt, or vest for effortless carry. Ergonomic & Comfort-First Design: High-elastic fabric and thoughtful cut provide powerful support without feeling restrictive or heavy. Fabric Features High-Elastic Compression Blend: 30% spandex-infused fabric offers excellent stretch, recovery, and muscle-wrapping support while remaining lightweight and breathable. Advanced Moisture Management: Rapidly wicks sweat away to keep arms dry and comfortable. Non-Sticky, Smooth Hand-Feel: Premium seamless finish and soft fabric eliminate friction and chafing. Material & Care 70% Polyester 30% Spandex Machine Wash Cold 30ºC Do Not Dry Clean Do Not Use Softeners Do Not Bleach Do Not Iron Line Dry