APXS the S attached to APX stands for small
This product has integrated dull lens ventilation,its double lens so its harder to fog(almost impossible to fog),the frame itself has a lot of ventilation.
The back side of the lens has a super amazing anti-fog coding. THEY WILL NOT FOG UP
This product also has triple foam which has the top layer with micro fleece so its super soft and comfortable,It has a rimless look,the looks are extremely cool,On top of everything is has a set of interchangeable lens that you can change in and out with no problem at all.
They also come with the use of prescription,if you get mirror lens you cant even tell that the prescription is in there.
They come with a hard case that will protect them vs ANY POWERFUL outside force.