I sweat very heavily when cycling and it was always getting in my eyes and stinging. Tried several products with limited success. I was recommended Sweathawg by a fellow cyclist and went for my first ride yesterday. Wow, what a revelation! Was a hard ride and again sweated heavily and not one drop in my eyes or running down my face. Stopped for coffee and was amazed that the cap was dry. This is a bit expensive but super effective.