Hyperflex has this odd entry system that is sort of a front zip but not. The zipper is a short horizontal section just below the neck. Flexible on the neck and it's easy on. Little hard to zip at first. Nice for your harness and you can prone paddle also.
Me = 145lb + 6" + (15M spd3 dlx, 11M x-bow, Kahoona 9.5M, 7.5V2) + Zap skim, home made 133 orange carbon aka Bifrost, home made black 170x50 cabon racing light wind tt, 133 wide tip carbon) + red helmet