I'm a medium but I've been caught out before with Raidlight sizing when I had a medium that was basically a small (if not smaller) so bought a size up but it turns out they now have sizes that are what they say they are, this is an actual large so too big for me. Shame as it looks a really well made top and I can't afford a full price one. £25 posted. Pics from eBay from when I purchased it, I can send actual pics if required.
Link to Raidlight info
https://raidlight.com/en/collections/ma ... ts/glimt22
Raidlight sizing in the past used to be at least one size smaller than stated. I once got a bargain long sleeved base layer with windproof fronts to the sleeves, thumb loops, zip, high collar etc. The perfect top, in a medium. Had to give it to Jane as it was so small I couldn't even get it on.