Stay safe and stylish out behind a boat or cable this summer with the Cause from Jetpilot. While still being USCG Approved, this jacket offers a wide range of movement and a style that will please most. SizeUSCG (Chest Size)Non USCG (Chest Size) Teen 28"- 30" N/A Small 33"- 37" 28"- 32" Medium 37"- 41" 32"- 36" Large 41"- 45" 36"- 40" X-Large 45"- 49" 40"- 44" XX-Large 49"- 53" 44"- 48"