Warby Parker is introducing its latest series of limited edition frames and for this collection they're mixing acetate and titanium in a unique new silhouette. The company is sandwiching two layers of titanium over a sliver of acetate to create a look that's both classic yet fresh and modern. The frames are set up with CR-39 polarized lenses standard and if you need a prescription it only adds $80 on top of the $145 retail price. 

$145-$225, warbyparker.com