Keep on course in the Oakley MOD 1 Pro MIPS Round Fit Helmet and reduce your stress level while shredding to your heart's content. The Oakley MOD 1 Pro retains the clean, low profile skate styling of the original MOD 1, but beefs up the durability by switching to an injection-molded Dura-Matter shell. MIPS and the BOA 360 Fit System are standard, of course, and Oakley has combined the two to create their unique Skull Matrix system. Dura-Matter Shell Oakley's most robust construction uses an injected molded Dura-Matter shell over an EPS foam liner, giving the helmet the highest level of ding and dent resistance. Fixed Venting Fixed vents in front for goggle ventilation; fixed vents on top for your head. BOA 360 Fit System A fully adjustable design is engineered to help deliver an exact fit. Skull Matrix MIPS and BOA technologies merge into a unique single system. Skull Matrix is designed to provide a more adaptive fit to help enhance comfort for an improved riding experience. Round Fit Round fit helmets are designed specifically for rounder shaped heads with added width in the rear and a shorter length to minimize pressure point discomfort from front to back for a comfortable fit.