Unfortunately, as others have pointed out, they are not made by Huk, just licensed to use the SPG brand. Very suitable for a large head and a pleasant lightweight. The polarization is about average, but not as good as my Costas. They really shouldn't cost more than $25. looks like glasses found on a rotating display in rest stops, supermarkets, etc. i.e.
Oakley Flak Jacket 13-727 with Polarized Lenses
36 Review
Enhance Your Eyewear: Mryok Polarized Replacement Lenses Tempo - Find the Perfect Fit!
34 Review
Polarized Aviator Sunglasses For Men With Military Style By SUNGAIT
36 Review
Walleva Replacement Lenses Batwolf Sunglasses Men's Accessories
46 Review