Featuring a half zip neck, ribbed collar, cuffs, and waistband to ensure a snug fit that retains its shape over time. Our men's half-zip sweaters also feature a signature leather Swanndri brand patch. Ideal for the cooler months of Spring, Autumn, and Winter, the Mariner Wool Zip-Up Sweater is a heavy-weight knit sweater that will keep you warm. Made with a rugged blend of 65% New Zealand Wool and 35% polyester, the Mariner Zip Neck Sweater offers top-notch comfort and durability.