Customers are overwhelmingly pleased with the Kids' Flexible Square Glasses from Zenni, praising their flexibility, stylish design, and comfort for active children. Many parents appreciate the affordable price compared to big-name brands, noting how well the glasses fit their kids and how much the kids enjoy wearing them. The durability of the glasses and the included strap for added security is frequently highlighted, although some reviews mention concerns about the lenses popping out. Overall, parents feel confident buying these glasses for their children, stating they meet their needs for both functionality and style.