So I plan on returning this after I go airsofting with my buds. But first off cracks. There are 2 that I can see around the battery housing for the fan. 2 the fan feels like its blowing in reverse, I think its not suppose to blow air out, my assumption is that its suppose to blow air in to keep glasses from fogging up. And 3 the foam (if that's what you want to call it) padding that goes around the goggles hardly has any glue on them. I can just pull it off by flicking it with my finger.These will work for want I need them for but I dont plan on keeping themI was looking forward to these coming from Evike (a well known airsoft store). Very stiff and did not conform to my face making a full seal. They were also bulky and did not work with my fast helmet. Never tested them on the field. Returned.For the price these goggles are fine. Not difficult to glue the foam back properly if it's loose. And the fan is 100% supposed to pull air out of the googles in order to out and up. Any adult understands this concept. If you don't want to spend $200 on Smiths or ESS this will do, especially for $30. A little thought,care and preparation goes a long way.