21ST BIRTHDAY GIFTS FOR HER HIM: These birthday socks could be the perfect birthday gift for brother, sister, son, daughter, grandson, granddaughter, nephew, niece, girlfriend, boyfriend, male or female friend.
GIFTS FOR 21 YEAR OLDS: These socks feature birthday gifts, balloons, cakes, and other elements on the top, while the bottom features a hilarious secret message written in non-slip ink: "I CAN'T KEEP CALM, IT'S MY 21ST BIRTHDAY." They are suitable for any holiday gifts, such as Birthday gifts, Christmas gifts, or White Elephant gifts.
SIZE & PACKAGE: Our unisex design fits most men's US size 6-13 feet and most women's US size 7 and up. Each exclusive gift box contains one pair of novelty socks.
QUALITY MATERIAL: Discover the perfect fusion of materials in our socks - 80% cotton for softness, 15% nylon for sturdiness, and 5% spandex for a comfortable stretch.