The hoodie shirt measures 15 1/4" armpit to armpit ... 21 1/4" in length from the top shoulder seam to the bottom hem ... Sleeves measure 10 1/2" from the shoulder seam to the bottom of the hem

The muscle shirt measures 15" armpit to armpit...21 1/2" in length from the shoulder seam to the bottom of the hem ... sleeve opening is 8"