- NWT St. Agni Linen Helm Vest - Size small - As seen on Meghan Markle A feminine deconstruction of classic suiting silhouettes, the Linen Helm Vest features a barely-there backless design, side pockets and a halter-neck collar. Crafted from a 100% linen body and lyocell lining, the Helm Vest feels elevated yet understated enough for casual wear. Match it with our Linen Overlap Waist Trousers for a sophisticated and quintessentially St. Agni pairing.