Ok first of all this is me giving review from my husbands account 
Straps are of good quality. I got the 15mm width. Great support for my 36ddd cups. Doesnt dig my shoulders and stays at place which is a relief because all my other straps slide away giving me a tough time. Been using for a while with no issues. Was thrown in the dryer with the bra by mistake and I thought its damaged but lo its still perfect to use although straps came out entangled but with use it straightened. No itchy skin nor any rashes developed. Have been wearing for hours continuously. Very pleased.