Oakley 31thirteen Prescription Glasses Singapore | A subdued style highlight is what you will give your look this season when you wear this black coloured, rimless eyeglasses frame from Oakley. This unisex, rectangular frame is not just visually appealing, but is also comfortable to wear and long-lasting, courtesy its metallic make. is a pair of Rimless Eyeglasses. Made of Light weight Titanium Alloy Material. Do you want to buy?