This product can be worn on both outdoor and indoor courts. ------------------------------------------------------------- ◆ Product Description: IRUKA's "PURE YELLOW" sunglasses. Finished with a "transparent yellow coating" and a simple design. This product can also be worn on indoor courts. Because the polarized lenses are transparent, they reduce the glare and reflections of indoor court lighting, preventing unwanted shine and providing a comfortable view. IRUKA sunglasses are basically designed as sunglasses that can be used for both sports and everyday life. ☆ Suitable for sports such as tennis, golf, and marathons. ------------------------------------------------------------- ◆ Three Features ① Lightweight Sunglasses Designed with an emphasis on lightness, weighing approximately 20g. The average weight of regular sports sunglasses is 25-30g. ② Polarized Lenses The advantage is that the contrast becomes clearer even in strong sunlight, allowing you to clearly see the shape of things. ③ Doesn't shake during PLAY. Using a durable material called "polycarbonate," we pursue a "less shaky, comfortable fit" even when worn. --------------------------------------------------------------------- ◆ Product Details ・ Color: Yellow (PURE YELLOW) ・ Size: Width 145mm x Height 45mm x Depth 133mm ・ Lenses: Polarized lenses ・ Material: Polycarbonate ・ Visible light transmittance: Approximately 30%