What is M+S Indigo sizing like?

[MedusaIsHavingABadHairDay]

I've seen a nice denim skirt I like online, but they don't have one in my little local store and I have never bought an M+S skirt before! I'm usually a 10 but sometimes need an 8 in Next or Fatface skirts..

Shall I order the 8 or the 10?

10, sizes are normal

I would go for an 8.
I bought jeans a few months ago and the waist was huge (ie didn't cut in like all my other jeans )