Jack and Jones Core Jacket Mens. Jack and Jones Core Jacket MensLayer up in lightweight comfort with the Core Jacket from Jack and Jones. Crafted with a 1/4 zip, fixed hood, and 2 pockets, this piece is perfect for wet and windy days.> Jacket> Lightweight> 1/4 zip> Hooded> Toggle hood> Hem zips> 2 pocket design> Elasticated cuffs> 100% polyester> Machine washable