Knockaround Sunglasses Review: Can $20 glasses be any good?
TL;DR — Knockaround's $20 sunglasses are genuinely solid—scratch-resistant, polarized, and survive abuse. You're not sacrificing quality for price. Best value in shades, period. Polarized vs. Non-Polarized Sunglasses Polarized sunglasses work by filtering out horizontal light waves, reducing glare from surfaces like water and roads. This makes details sharper and lessens eye strain. But sometimes, you …