GildanHeavy Blend Unisex Adult Full Zip Hooded Sweatshirt Top (M) (Dark Chocolate)

I’m 5’2 79lbs what size should I get?

are these for men or women?

Regarding the "gildan heavy blend unisex adult full zip hooded sweatshirt top" the chest measurement makes no sense. small size: 20 inches? ??????

Im 5ft 5", what size should I get? I like tighter fitting hoodies