Windproof yet highly breathable. Warm yet lightweight. Water resistance with stretch. THE ONE Men's Jacket features KUHLs temperature-regulating Aeroknit technology for breathable comfort and performance. Underarm knit gussets provide stretch and release excess heat during high-output activity. Our articulated design directly results from a comprehensive study of a body in motion. There is only one! | KUHL The One Jacket in Brown | Size Small