Royal blue shirt is size L by Active Basic. 92% Cotton 8% spandex  15 inches pit to pit and 25 inches long.

Red shirt is size M by Next Level. 50% polyester 25% cotton 25% rayon. 15 1/2 inches pit to pit and 24 inches long.

Orange shirt is size S by American Eagle. 100% cotton  15 1/2 inches pit to pit and 25 inches long.  Some cracking on front lettering and 2 small repairs on the back side. 

All different sizes but they measure about the same. 

Comes from a smoke free home.

Visit my Ebay store for many other items.....I will gladly combine shipping on multiple items! V