Rab womens microlight vest a mini stitch through baffle construction and a minimal uncluttered design make the microlight vest ideal for use as a layering piece for alpine climbers or an adaptable stand alone vest for day to day use 78g uk 12 of 750fp hydrophobic down provides excellent warmth without compromising on weight and is protected by a breathable and windproof pertex microlight outer fabric the microlight vest is a technically featured piece with ykk zipped pockets through