Smith Optics Boogie Regulator Elite Tactical Goggles Lenses meet US MIL-DTL-43511D goggle impact level clause 3.5.10 Smith patented Regulator ventilates lenses to keep fog away and Anti-fog and scratch resistant coatings on all lenses Fits like an eyeshield with protection of a goggle 100% protection from UVA/UVB rays