SUM FAQ's:I have a big head, will this SUM fit me?
We designed OUR SUM to Fit 98% of the world's population. If you fit in this 2%, chances are it won't fit you. If your hat size is more than 8 1/2 it definitely won't fit.Does the lens fog up?
NO, they don't fog up. We have a military grade Anti Fog, Anti Scratch and UV coatings that pass the ANSI (American National Standards Institute) Rated and APPROVED (means it passed the United States standard ratings for optical clarity, impact resistant and Luminous transmittance). Our lenses have AF+AS+UV Coatings that meet or exceed EN166, ASTM F659 anti-fog performance specifications, Falling sand (ASTM D968) test and Bayer abrasion resistance (ASTM F735.81-Modified) test. Independent evaluation confirms our NEW coatings are superior to other formable coatings and silicone hardcoats. In Taber abrasion (ASTM D1044) test, the abrasion resistance outperforms any other formable coating. Our anti-fog and anti scratch coatings are retained even after extended water immersion or repeated cleaning. No other commercially available anti-fog technology offers this level of long-term effectiveness and durability. In other words, the lens won't fog up as long as you aren't using the SUM in temperatures colder than -4 degrees F or hotter than 122 degrees F, the coatings will last a looooooong time AND you can wash it and wipe it however you want to. Just don't use any cleaner that has ammonia in it, like Windex!Is the lens interchangeable?
YES! All of our SUM lenses can be interchangeable to any SUM mask you choose.Is this a helmet?
NO, it's not a full face helmet; it's similar to a hockey goalies face mask that protects the front of the head and face. There's a strap that goes over your head, similar to a goggle strap that keep the mask from coming off your head. Check your State's Helmet Laws. This mask will not work in conjunction with a helmet. Will it fly off while I'm driving?
We tested the mask while driving over 100+ mph looking all directions, even backwards and our SUM didn't budge. No, it won't fly off your face while driving and if it does...SLOW DOWN!How hard is it to put on?
It takes less than 2 seconds to put it on. Simply place palms on the sides of the mask with your thumbs under the strap, place the strap around the back of the head, pull the mask forward over your glasses and place on your face. After you do it 3 or so times, it's a cinch!What if I don't like it?
Within 30 days you can send it back for a full refund less shipping charged. Please note that all returns sent without the instructions, materials, and packaging will be subject to a 15% restocking fee.Can I wear this with my rain gear?
ABSOFREAKIN'LUTELY! All you gotta do is; put on the hood, button down, and strap on the SUM! AND, when it's time to take off and you're not wearing rain gear, turn your hat around and strap on the SUM.