Next Level ApparelMen's 6240 CVC V-Neck Tee

is the Black-packs 10 a pack of 10 shirts?

compared to the tri-blend, how is the breath-ability and thickness of this t-shirt?

I prefer loose fitting sleeves for relaxed comfort. Are the sleeves loose or tight fitting on the upper arm?

I'm 6'8" 275 lbs, athletic to a little bulky, I find it hard to find shirts long enough but I usually wear a xl, what size should I order? cheers