Never heard of TYR? Me neither. I have been buying standard Speedo and Adidas swimsuits off the peg for years and never had quality as good as this. The fabric is of a much higher strength and far less giving - which is perfect for keeping your figure in place. I put a 'just under excellent' rating because this swimsuit is tricky to get into because it's so firm, and seems perhaps a little short. I'm in two minds about whether I'd prefer this to be rectified because, though I can imagine my shoulders would get tired after a few hours, I did like the way it held my body in shape and streamline for swimming. In short, the suit is is like a 'compression suit'; it's narrow and short and unforgiving to get into but the stitching, at least, doesn't give way. And once you're in, you feel well supported. There were no issues with the buttock riding up after climbing out either - that in itself was a first. I'd be interested to know how the next size up would fit but I'd probably stay with the one I have. ...and I'll definitely stick to this brand next time.