Key Features:
Full Spectrum IR + UV blocking
Industry standard color neutrality
Fits any standard mattebox (4x5.65", 4mm)
 
Glass/coatings:
IR blocking hot mirror coating
UV blocking coating
Industry standard Schott B270 glass (produced in Germany and used by Schneider, Tiffen, and other filter manufacturers)
Waterproof + oil proof coating
Scratch-resistant coating
MRC coating (multi resistant coating - weather sealing, good in extreme conditions against mud/dust/waterdrops etc.)