ZONBAILONMens Trunks Underwear Pack with Pouch Breathable Bamboo Short Leg Boxer Briefs

is this bamboo/spandex fabric a mesh fabric?

The laundering instructions are icons that I have no idea as to what they means, so any chance the manufacturers could give answers in writing???

I wear a men's 42, im 6'3" and 300lbs. would the xxl or xxxl be better?

fabric content?