Where have all the comfy cotton leggings gone?

[Gruffling]

I have so many cotton leggings, but have not bought any new ones since DC born and now mine are falling to bits and can't find any to buy!

All the ones in the shops seem to be: too thin: viscose or polyester; have a weird thick waistband that is made with insufficiently stretchy elastic.

Just spent an hour looking online and can't find any in my size with good reviews at a reasonable price. Was tempted by Seasalt, but they are almost £30 a pair! I might pay that if the reviews were all great, but they were not.

If you like plain, comfy, cotton leggings - where do you get them from these days?

I'm finding this Op.
Used to get size 12 leggings from Dorothy Perkins.
Now they are too tight round the waste if they fit in the 'bottom'
The next size up too baggy on the bum.
I've several pairs brought on line including marks and Spencer's.

My £2.50 primark leggings are 95% cotton.

Sainsburys have good ones