Hanesmens Hanes Men's Comfort Flex Fit Long Leg Total Support Pouch Boxer Briefs, 3-pack Boxer Briefs (pack of 3)

I'm trying to decide between these or the x-temp version with mesh. Can anyone tell me if the mesh version is comfortable?

My waist size is 35", in between M and L, which size should I buy?

How do i pick the size?

I got a 9" monkey hanging from these nads, what size should i get?