Puro 4.1 Long-Sleeve Jersey - Men's

What Our Gearhead® Experts Are Saying:

"I logged a full shoulder season block in this, and it consistently outperformed its weight in warmth. The high stretch 3D knit never restricted my reach into the drops, and the reflective shoulder panels made pre-dawn starts feel noticeably safer."

Castelli built this jersey around a 3D knit fabric in 93% polyester and 7% elastane, engineered to trap more warmth than its 180g weight would suggest while still managing moisture as effort climbs. High-stretch construction allows a close-to-body fit that never feels restrictive, even through aggressive positions on the bike.

Reflective panels on the shoulder and heat transfers on the pocket combine for 360-degree visibility, a meaningful addition for riders logging early or late season miles in low light. A gripper elastic waist, three rear pockets, and an easy-sliding YKK® Vislon® zipper round out a build focused on function through a full ride.

This is the jersey built for the 12-to-18-degree Celsius window, ideal for early fall or late spring rides that need real warmth without the bulk of a heavier winter layer.