The classic windproof vest has been reinterpreted to make it as slim as the rest of your wardrobe. This vest is designed to completely block the wind on the front while allowing ample breathability on the back. The fabrics are so incredibly lightweight that you'll be surprised at how much warmer you'll feel when you wear this vest over your shirt.
But the magic comes from the cut and the stretch fabric used on the back, which makes the vest fit close to the body without being too tight or making you look ridiculous. When it's time to take it off, the vest completely disappears into the back pocket of your shirt, taking up as little space as possible.