Even with the best drysuits your hair still gets wet!
I was always getting grief for taking our house towels on dive trips and returning them less than perfect. So we thought we would treat our selves to the luxury of our own dive trip towel. It comes in comes in slate grey so it always at least looks clean, a good size 70x135cm even for the biggest guys, it's a luxurious 650gsm of pure cotton. Ties on three corners so it can be securely tied to boat rails, trees, car roof racks, etc. to dry, without losing it in strong winds. A great addition to any dive bag whether is a quick dip in the local quarry or the expedition of a life time.