Lancier's LSA-708 brings a new sleekness to this classic square frame shape. The sophisticated frame shape was crafted with a high-quality. lightweight nylon-based TR90 frame and temples. along with a custom anti-walk hinge pin and open/close assisted detent feature for a secure fit. Sculpted flex-fitting temples are specifically designed with curvature to provide almost 300 degrees of frame support. Additionally featuring a square hole detail and classic square shape that is ideal for a performance cord. LSA 708 is universally flattering and ideal for any activity. These unisex sunglasses are a testament to the power of simple and timeless design.