Don't let your Big Mouf Clear View Mask get all fogged up. Just rub a tiny drop of the WTF (What the Fog) Solution on the inside of the clear view pane of your mask and you can enjoy hours of fog-free use! You can also use it for hand-washing your mask--or hand-washing your baby's hair...it's actually a gentle formula baby shampoo conveniently packaged for you in a portable, easy-to-use 2 oz. bottle. Visit our Instagram @bigmoufmasks for a video demonstration.