Wish you would show how absolutely difficult it is to zip the helix rather than how easy to unzip. I am 5'9" 160 lbs and ordered a size M per size chart last week for seasons first Tri this weekend. Every person there who had a helix had to have someone help zip it. I helped atleast 4 people who were struggling and of course had to embarrassingly ask for help as well. If you are not a contortionist or don't mind asking for help constantly or never swim alone this suit might work. I have a brand new 2015 sleeveless helix and I love it once it was on, but getting it zipped is such a pain that I wish I would have never bought it. Whomever came up with that design of a down zipper should be fired. I find it interesting that your video didn't show the guy doing it himself. Even found a video from a pro that simply said you have to seek help to zip. Would not recommend this suit at all, I just have to deal with it.