I love the Street Team Jacket. Lightweight, definitely a year round jacket, it keeps you plenty warm in colder weather and with the vents open, it does a good job of keeping you from overheating in hot weather. The jacket comes with a three year warranty and with your purchase a donation is made towards Homes for Our Troops. Black Brand has payed attention to detail and it payed off. Making sure they use quality materials to make the best overall quality jacket. They use YKK Zippers, D30 Armor for protection and comfort, 37.5 thermal regulating inner liner, Full-sleeve, windproof zip-out liner fits in jacket pocket, subtle reflective piping, and a snap down collar.