I don't know what this type of accidental optical illusion is called

plus you've got a hammer loop

size-specific caps create close contact with pad to minimize bulk

Direct embroidery on front

Double Fold for extra volume

Pro-Tec Helmet SIZE:L/XL I don't know what thisBreakthrough technology that delivers the deepest fit with unlimited customization for supreme comfort and security. It starts with our most advanced slimmest profile shell design, wrapped with newly designed luxurious liners to hug your head like youve never experienced before. The LOW PRO is a true helmet revelation and its fully certified for: U. S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. ASTM F1447 Standard