The Sentinel Half Tight is the result of two years of research and development, leveraging the best features of our renowned running shorts to create uncompromising tights for race day PB's and ambitious mountain adventures. Built from custom ForgeKnit™ Nylon, the Sentinel Half Tight features micro-knit, ultra-fine nylon yarns for trail-ready durability and just-right compression that keeps you comfortable and your gear firmly in place. We tapped our friend Eric Floberg, a Chicago-based runner, photographer and filmmaker, to field test prototypes of the Sentinel Tight. The result: a tight optimized for the real-world rigors of racing—and his personal best time in the half marathon. 80% Nylon, 20% Spandex, 200 gsm performance compression knit. Flat, durable exterior with soft interior. Paneled seams at the crotch for comfort. Double ply crotch panel for modesty power mesh lined hip pockets for added durability Elasticized, non-slip leg opening. Performance elastic waistband with external drawcord. Four side storage pouch pockets. YKK invisible zip center back phone pocket. Front key fob pocket. Tight fit Can be worn with or without base liner underneath, it’s a personal preference. Weight: 5.6 oz / 159 g (size M)