Allsaints leggings - sizing

[Notcontent]

My teen dd was given an Allsaints gift voucher and the only thing she can find on their website that she would wear (and that’s not super expensive!) is their leggings. Any idea about the sizing? Would normally order the small but it says the model (who looks very slim!) is wearing a medium...

I had the leggings with a skirt attached and bought a large but should have bought a medium. I'm a size 12 or 14 in leggings. So I'd size down. They are very long and I am 5'8" with a 33" inside leg. They were comfy but faded quickly and the inside seams burst gradually over time.

They have 30% off just now til 1st Dec so she might see a tshirt or a top within her price range instead.

Thanks very much EmberElftre - that’s really helpful.

Yes, will see if there is anything else. It was a well meant but slightly misguided gift as dd is only 14...

Is the voucher for much ? Maybe sell it for cash and she can buy something she likes rather than just something she can find ?