2015 Mizuno Impermalite F10 Flex Short Sleeve Rain Top 1/4 Zip Waterproof Mens Golf Jacket 100% polyester 10,000mm breathability Mizuno Logo on the back of the neck & sleeve 100% Polyester Waterproof 1/4 Zip Windproof Water protection and breathability Flex Rain Top short sleeve Jacket uses ImpermaLite technology