I have Mand S microfibre version that have buttons which I love. I have tried trubie twist and primark ones but prefer M&S ones!
I bought my. DD and I one of the m&s ones each recently in the sale- they were reduced to £4, then I got another 20% off on top- worked out £3.20 each.They are great quality.
Primark do a really good gym towel in their sports section which is a hand towel in microfibre which is also a perfect head size for £2. No good for the microfibre haters but they are brilliant little towels. I took a couple in to hospital with me recently as it's nice to have a lightweight towel when you have had surgery.