It seems like you're interested in children's fashion sports sunglasses with a color block design. Color block design typically involves using two or more contrasting colors or color combinations in a bold and visually striking manner. When choosing sunglasses for kids with this design, you might look for options that are not only stylish but also provide protection from the sun. Here are some key features to consider:

1. UV Protection: Ensure that the sunglasses provide adequate UV protection to shield your child's eyes from harmful UV rays. Look for sunglasses that offer 100% UVA and UVB protection.

2. Durability: Kids can be rough with their belongings, so opt for sunglasses made from durable materials that can withstand everyday wear and tear.

3. Comfort: Choose sunglasses with comfortable and adjustable features, like nose pads and temple tips, to ensure a good fit for your child.

4. Lens Quality: High-quality lenses with anti-scratch and anti-glare coatings are essential for clear vision and eye protection.

5. Size and Fit: Make sure the sunglasses are the right size for your child's face. Look for options that provide a snug fit without being too tight.

6. Color Block Design: Select sunglasses with a color block design that matches your child's style and preferences. This might include frames with contrasting colors, bold patterns, or other unique elements.

7. Age-Appropriate Styles: Consider the age and preferences of your child when choosing sunglasses. Younger kids may prefer fun, vibrant colors and playful designs, while older children might lean towards more sophisticated styles.

When shopping for children's fashion sports sunglasses with a color block design, you can explore various brands and models available in the market to find the perfect pair that combines style and functionality while keeping your child's eyes protected from the sun.