I bought this because the weight limit was 350 lbs. Not that I weight that much but I wanted it to be sturdy and last a long time. Also easy to get on and off and adjust as needed if more than one person is using. Can't say if it would be good for doing crunches since I only invert and not all the way yet. I also wanted comfort on my ankles and this has it. Takes an hour to an hour and a half to put together but the directions were clear. This has 5 star reviews on this website and others which also influenced my decision to purchase..
The vest is comfortable - it seems to be designed not to chafe and the weight is evenly distributed (easy to carry). I am using it on an elyptical machine - started at 5 minutes per day and have worked up to 20 over a couple of weeks. I could probably wear it for the elyptical workout but am being conservative while I increase the duration.
As far as the product itself, no problems. It did take a month to get here when I was told 3-5 business days. No discount, no coupons, nothing. I will NEVER order from overtook.com again. It was absolutely the WORST online service I have ever used.
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