The M4 is the fourth member of anon.’s magnetic lens-change goggle family—which have been regulars on the pages of FREESKIER’s Buyer’s Guides since 2013. anon. incorporated a toric lens shape into the M4, which boasts the field of view and visual clarity of a spherical lens and the low profile design of a cylindrical one. And, of course, anon. utilizes its renowned MagnaTech lens-change system which relies upon 16 rare earth magnets with eight connection points for no-think, on-the-fly lens substitutions.