We have had our vest shape for ten years nearly now, Just a color difference on our new one. I don't think any company copies another. Just the dynamic padding design makes the shape look very similar. I think we use differenct material, shape of the vest, length, flexibility. The only part of the vest looking similar is the padding. We are all trying to make vests that fit great, look good, and offer up protection with flexibility. Radar are a great brand who do many great things for waterskiing, just as we are supporting the sport we all love. @thager the same company do not make our vests.