I like the design of the mask. The elastic over the ear helps to keep mask in place and they are adjustable. The one way valve works well to keep dust out and let out vapor.
I like to buckles and straps rather than locks. Container is well made. But time will tell
Working out great but for some reason I purchased 4 instead of just 2.
Outstanding fit. Totally worked with my windshield. Top quality. Very pleased.