Features of gray supporters: Breathable. Black is used frequently. Gray is not used as much. The product will be carefully packaged with cushioning material (bubble wrap) to prevent damage during shipping. Please purchase with confidence. Single item purchases are also possible (Gray: 900 yen, Black: 700 yen). Please feel free to comment if you have any questions. *Notes* ・We do not accept returns or complaints after purchase, so please understand. Thank you for viewing.