NWT Simply for Sports Men's L Tank Top 2 Shirts Casual Sleeveless stretch knit Cotton Blue Gray.  Each measures approx. 28"; pit to pit is 22" (44" all around); arm hole opening extends to approx. 12" (24" opening all around). Reminder, Cotton/Poly blend - so will stretch somewhat for comfort fit. Nice solid Brilliant Blue + Medium Heather Gray toned from JC Penney Dept. Store.