Originally Posted by ashep01
I have only worn the slys so I can only tell you about them. They are the most comfortable mask I have ever worn. Only once have I ever had a fogging problems, but that was during a very humid day and while playing woodsball during a 30 minute game. They sit very securely on my face and offer great protection.
However, the mouth area tends to get overly hot because it is not ventilated very well. Your breaths are just cycled back into the area around your mouth. On top of that, if you play in tournaments, it is very hard for others to hear you and for that reason I bought some I4's. When you yell, due to the lack of ventilation in the mouth most of your telling just cycles around in your mask.
I agree with everything this guy said about the Profits other than the comfort part. This mask was the most comfortable one I had worn until the new E-Flex came out. Now that one is. He is also not kidding about the breathing part. That mask can get stuffy. I prefer comfort and breath-ability which is why I own the E-Flexes. I don't want to steer away from the original question though so out of those two I would pick the Profits.