What's Appin-in? Well, with the Appin men's ski jacket, a lot. With a technical rating of TP75, this men's jacket is waterproof up to 5000mm, breathable to 5000mvp and boasts the expert Coldheat technology, too. It features four zip pockets for the handy storage of ski passes, phones and even hands. So when it's cold outside, you'll be cosy inside with one of the Appin men's ski jackets.