The PakaJak is a no-frills, windproof shell that packs down small enough to stash in its own stuff sack—ready to pull out whenever you need that extra layer of protection to stay comfy on the ride. Made with lightweight, windproof ripstop fabric and treated with a durable water repellent finish, it’ll keep the elements at bay without weighing you down. The underarms feature open mesh to keep things breathable and comfortable when you’re pushing the pedals.