【Won't Slip Off All Day】 Our original, patented "U-shaped stopper" technology, developed through research on foot movement and fabric elasticity, firmly holds the heel, ensuring they "won't slip off all day." They won't slip off, whether you're climbing stairs, running, or taking off your shoes. 【Exquisite Design, Hidden from Shoes】 The socks are designed to be invisible from your shoes, giving your feet a clean look and not interfering with your outfit. 【Convenient 3-Pair/6-Pair Sets for Easy Washing】 The simple design makes them versatile for various occasions. The "KOKOPITA" socks that "won't slip off," which are trending on TV commercials and social media, have surpassed a cumulative sales of 70 million pairs. *Based on cumulative sales of the series. Shipping base from January 2018. This is a set of 6 pairs, consisting of 3-pair sets x 2. Colors are gray and beige. Brand new, unused. #KOKOPITA #LowCut #DeepCut #mcloset #Affordable Pattern/Design...Solid Stains/Tears/Smell...None