Lightweight, low-bulk, versatile. This year-round insulation is ideal for layering up or stashing away, ready to throw on when the mercury drops.Specs Fit: Regular Weight: 10.4oz / 295g(Size M) Size and fit guide: Men&';s Microlighter Down Jacket Activities: Men&';s Microlighter Down Jacket Material Facts: Men&';s Microlighter Down Jacket Centre back length: 29.1in / 74cm (Size M) Insulation: TXdownA(R) recycled down infused sheet insulation (50gsm) Main fabric: 30D PertexA(R) Quantum with fluorocarbon-free DWR (43g/m^2)