CarharttRipstop Men's Multi-Cargo Scrub Pant

How see-through are the white pants? I love white scrubs, but hate having to coordinate underwear. Would you be able to see blue or red through them?

If i run from a 38-40 in waist should i get the large or xl? from the reviews people are saying they tend to run tight, so i want to be sure, thanks.

I work in international settings, often near the equator. Do these tend to be hotter or cooler than their peers?

Is there a way to specify the desired inseam? The last time I ordered online scrubs, this also wasn't clear and I ended up putting about a 4" hem.