These ET 973 eyeglasses (with no clip-on lens) from EasyTwist offer an on-trend, semi-rimless silhouette for the contemporary man. Crafted in a sturdy, corrosion-resistant copper and nickel alloy, the rectangular frames retain their shape beautifully through extended wear. The slim temples curve inward slightly for stability, and come with plastic socks over the tips for a comfortable, secure fit. The spring hinges are flexible, durable, and retain their initial balance for stability. Despite their slender appearance, these EasyTwist ET 973 glasses are engineered for heavy wear.