Key features: Main body fabric cut from our new Rapha Performance Merino Off Road wool blend, specially developed for enhanced durability and all day comfort on the trail. Windproof and tear-resistant front panel for added protection from wind and cold air. Full-length sleeves constructed from a durable, hard-wearing nylon fabric for snag resistance. Ergonomic fit and construction for unrestricted freedom of movement. Rapha Repair Kit included to remedy sleeve damage and eligible for further Rapha repairs service if needed. How to wear: Wear over a base layer or next to skin and pair with the Rapha Trail Shorts. Layer under the Trail Lightweight Jacket for chilly starts or late finishes.