Small: Chest Width23.22in, Sleeve Length25in, Sleeve Width8.86in, Bottom Width21.85in, CenterBackLength27.17in, Neck Width7.28in, Hood Height13.78in, Hood Width9.06in, Cuff/Sleeve Opening6.3in. Middle: Chest Width24in, Sleeve Length25.79in, Sleeve Width9.25in, Bottom Width22.64in, CenterBackLength27.95in, Neck Width7.48in, Hood Height14.17in, Hood Width9.25in, Cuff/Sleeve Opening6.5in. Large: Chest Width24.8in, Sleeve Length26.57in, Sleeve Width9.65in, Bottom Width23.42in, CenterBackLength28.74in, Neck Width7.68in, Hood Height14.57in, Hood Width9.65in, Cuff/Sleeve Opening6.69in. X-Large: Chest Width25.59in, Sleeve Length27.36in, Sleeve Width10.04in, Bottom Width24.21in, CenterBackLength29.53in, Neck Width7.87in, Hood Height14.96in, Hood Width10.04in, Cuff/Sleeve Opening6.89in. XX-Large: Chest Width26.38in, Sleeve Length28.15in, Sleeve Width10.24in, Bottom Width25in, CenterBackLength30.31in, Neck Width8.07in, Hood Height15.35in, Hood Width10.24in, Cuff/Sleeve Opening7.09in. Model Jack 5.63ft, 137.79lb, size S fits well; Model John 5.64ft, 143.3lb, size M fits well; Model Mike 5.74ft, 176.4lb, size L fits well; Model James 6.07ft, 176.4lb, size L fits well; Model David 5.9ft, 187.39lb, size XL fits well; Model William 5.84ft, 209.4lb, size XXL fits well. Size Chart is for reference only. Measurements may vary slightly. If your measurement falls on or is close to the limit value, please choose a larger size. ONLY 90g, incredibly lightweight, you cannot feel it yet and it is soft against the skin, anti-static. Full-length and long-sleeved with a hood for head protection, a sun-protective jacket is the perfect blend of style and functionality for any summer outfit.