I'm only writing a review because Anorak solicited it. I couldn't find the size guide on the site, I emailed to enquire and telephoned the helpline but no one has been back in touch. I ordered a medium which were too large so I've sent them back to what I hope is the correct address and hope they will be exchanged for a small. A bit of communication is reassuring, there wasn't even anything in the package to help you with the return so I just wrote my request on the delivery slip. Fingers crossed that it works out and I get my pyjamas (which seem very nice) before christmas.