These cosy insulated arm warmers are ergonomically designed to perfectly fit your arm. Their technical material has undergone a series of practical test under various conditions modelled around the Norwegian climate to ensure they have maximum function and durability as well as an optimal fit. They stay firmly in place thanks to the elastic tapes with silicone grippers on the bicep and a tight fit cuff. And of course, they're also easily packable in your rear pockets. Finished with a reflective branding you can rest-assured that you will remain visible on dim and dark days without issue.