NWT Jenni Kayne 100% Cotton Navy Twill Utility Jacket Size XS. Jenni Kayne jacket cut from crisp cotton. 4 pockets border the buttoned placket. Unlined. This unstructured, cotton twill military jacket is timeless in Classic Navy and was an instant best-seller in green last Spring. Style in a more classic, slightly preppy version with a striped crewneck T-shirt and slim black jeans. For a more boho spin, pair w/mockneck knit, cords, and wide-brim hat. Both versatile and functional. 100% Cotton Twill.