Castelli Cold Days 2nd Layer Long Sleeve Base Layer

Castelli Cold Days 2nd Layer Long Sleeve Base Layer

Working as a second layer, the Castelli Long Sleeve Base Layer is ideal on cold winter days, using Polartec® Alpha® 90 fabric high-loft active insulation which is soft, stretchy, lightweight and warm. As well as being an excellent insulator, the material manages moisture to keep you dry and fresh. An asymmetrical half zip prevents zips from bulking up on top of one another, makes the garment easy to pull on and allows for good ventilation management. A high collar stops a chilly draught at the neck.