ToJoy Women's Silicone Dot Cotton Non Slip Winter Yoga Socks, 4 Pairs There have a nice tight band that goes around the arch of the foot Its in the design of the arch they are snug in that area and give extra support The non-slip bottoms are great - not just little dots that come off in the wash, but substantial silicone designs that should withstand many washings 4 Pair different style socks Women's Silicone Dot Cotton Non Slip Winter Yoga Socks