Have got a couple of pairs to try. The size L fit like gloves they’re easy to ride in and completely unobtrusive. The size M is a slightly tighter fit not uncomfortable but too tight to ride in as they are

Since all my knee pads have died due to slackness more than anything else I’m tempted to go for the smaller size.

Do they stretch much with use

Yes a little. Mine stretched around the top. I started with large as they fitted well from the outset. Should have probably gone medium.

Yeah same here the L is is a good fit but I wouldn’t want them to be any bigger. Many thanks