Kickboard recommendation

Can anyone recommend an adult (long - 20") kickboard that is NOT rigid? Our gym had these great semi-pliable long kickboards that I've yet to find online. The last one I ordered was too short and hurts my back. This is the kickboard that I have and use: smile.amazon.com/.../ref=ppx_yo_dt_b_search_asin_title Unfortunately it isn't available, at least on Amazon, right now. But it appears that this one is similar: smile.amazon.com/.../131-5199186-7993018 What I like about it is that it isn't one of those super-rigid ones that some others have mentioned; if those break or splinter they can be dangerous (yes I've found out the hard way). I'd look for one that is made of, "Eva foam," as that seems to be a good compromise. I know which kickboards you mention, the semi-pliable version that seem common at gyms. My gym had them as well, and they were ok for kick sets. But I've never seen those outside of gym pools.

Can anyone recommend an adult (long - 20") kickboard that is NOT rigid? Our gym had these great semi-pliable long kickboards that I've yet to find online. The last one I ordered was too short and hurts my back. This is the kickboard that I have and use: smile.amazon.com/.../ref=ppx_yo_dt_b_search_asin_title Unfortunately it isn't available, at least on Amazon, right now. But it appears that this one is similar: smile.amazon.com/.../131-5199186-7993018 What I like about it is that it isn't one of those super-rigid ones that some others have mentioned; if those break or splinter they can be dangerous (yes I've found out the hard way). I'd look for one that is made of, "Eva foam," as that seems to be a good compromise. I know which kickboards you mention, the semi-pliable version that seem common at gyms. My gym had them as well, and they were ok for kick sets. But I've never seen those outside of gym pools.