Amazon EssentialsWomen's Tech Stretch Short-Sleeved Crew Neck T-Shirt (Available in Plus Size), Multipacks

What would best fit a uk8? A small???

what size are the tshirts?

I’m a bit awkward size wise as ive a stoma and hernia. my abdomen is around an 18 but i’m a 14 otherwise! will an xxl to hide my bulge? thanks

Do these provide sun protection? Thank you.