Meet the PRTStuff 1/4 zip active top, your go-to mid layer for cold-weather action. Designed for performance and comfort, with stand-up collar   for extra warmth and made of recycled materials and part of our eco-friendly PVRE Green series  . Layer it up under your jacket or wear it on its own during milder days - it's built to adapt to your every adventure. For those who never settle for less than freedom, performance, and a great look.