Easy on off and insane technical features and comfort makes the Oneill Slasher impact vest a best seller every year.  Minimal Bulk Design Strategic Armhole Size Nytrolite Foam Tech Stretch Neoprene Reversible Design 100% UltraFlex DS Front Zip Segmented Foam Core Anatomical Flex Points O'Neill Slasher Comp Impact Vest 2017 - Black