DIAMOND PRO SOCKS: Tube socks Features embroidered MLB® logo on back of right sock Official socks of the MLB® COMFORTABLE DESIGN: Pique knit Arch support Reinforced toe and heel ADDITIONAL DETAILS: Recommended Care: Machine wash in 40 °C / 104 °F; avoid bleaching or ironing the socks Please Note: Socks will last longer if you keep them out of the dryer Officially licensed by MLB®.