Apart from m&s, who sells 100% short-sleeved white uniform shirts?

[EarlyIntheMorning]

This would be for 14 year old DS, preferably without breaking the bank!

Asda pack of 5 for £8 I think, maybe less ££ wash brilliantly, just bought for ds 14

But they're not 100% cotton, that's the problem...

Sorry I realise I missed that crucial part of info in my original op. They need to be 100% cotton due to skin condition.

You didn't specify cotton

The cotton bit was missing from the title! I got some from Debenhams but no idea if they're 100 percent cotton.

I know, sorry, that's the most important bit of my op

John Lewis! Expensive though...