This is the lightest, softest, most compressible synthetic down vest delivering four-season warmth. Sharing a name with the new insulative technology VerticalX SuperStrand, the SuperStrand LT Vest is just as soft, light, and lofty as 700-800 fill power down. Its ripstop nylon fabric resists abrasions and shields against wind and light precipitation, while a unique discontinuous quilting pattern reduces stitching and creates an uninterrupted flow of warmth. All this performance is packed into an ultralight average of 10 oz. that compresses down to the size of your palm. The SuperStrand LT Vest truly gives you the very best warmth-to-weight ratio that's ideal for wearing over base layers, and layering under hard shells, for whatever weather and temperature you have in store. Experience it for yourself.