Castelli Premio Evo Jersey Two fabrics. One jersey. Zero compromises on comfort or aerodynamics. The Premio Evo starts with a straightforward premise: put the right fabric exactly where it belongs. The body uses a stretch woven recycled microfiber polyester with 33% elastane - lightweight, perforated, and genuinely good at pulling sweat away on hot days. The shoulder panels shift to a recycled ribbed stretch woven mesh that opens up airflow precisely where heat accumulates most. The sleeves carry a matching ribbed construction that mirrors the Premio bibshort aesthetic, sitting snug without pinching. Strip away the collar and you shave weight and add cooling where a standard neckline would trap heat. It fits true to a race cut, so riders between sizes should go up. If you've spent time in long summer rides wondering why your back is soaked while your front panel stays dry, the Premio Evo's zoned construction addresses exactly that problem. Stretch woven recycled microfiber body with 33% elastane pulls moisture away fast and stretches through the pedal stroke without binding or bagging out Ribbed stretch woven mesh shoulder panels keep airflow moving over the zones that heat up first, adding aerodynamic structure where it counts Collarless construction reduces weight and runs cooler than a standard collar, without sacrificing the clean finish of a race-fit jersey Reverse-coil self-locking YKK zipper with U-shaped pull lets you dial ventilation on the fly without fumbling mid-ride Silicone gripper elastic on back with no-sew bonded front panel keeps the jersey locked in place during aggressive positioning so it never creeps up on longer efforts3 rear pockets plus hidden zippered security pocket give you storage for food and a safe place for cards or keys without extra bulk | Castelli | Premio Evo Jersey Men's | Size Large In Winter Sky | Polyester/elastane