These run a little small but I knew that from the reviews. I ordered a 3XL and I generally wear an Xl. I love that these shirts are long enough! I have trouble finding shirts that fit my long torso. Ive ordered several packs of the long sleeves and one pack of these short sleeved. And several packs of the cami tanks. Ive found the sizing between the 2xl-3XL to be really consistent.  PLEASE get more multi packs in the larger sizes in the brighter fun colors because Im ready to order more!