9 oz Wide Striped Long Sleeve T-Shirt

Sizing off. Too small

I really liked the quality of the shirts, however I normally wear XL and the XL's I ordered fit a bit small for me. I think XXL would be my ideal fit. For the short sleeved striped shirt, I thought I ordered white and black but I received white/blue. That could have been my mistake but not sure? For the long sleeved shirt, I bought it specifically for a work holiday party so I will end up wearing it even though it's a little too small. Love the styles and quality of the shirts but I usually don't order clothes online. If I could redo my order, I would do 1 black/white short sleeved striped shirt in XXL, and 1 black white/black long sleeved shirt in XXL. Is there any way to exchange sizes at this point or no? Thanks!

Nice shirt especially for the price, has a knit feel and texture. Im 5 ft 10 about 160 and the large was a nice fit, not slim but not huge