Fancy socks with sequins and coloured bands. They are long, they have roll tops and are reinforced at the heel and toe.
Cotton 55% , Polyamid 31% , Metalic fiber 12% , Elastane 2% https://www.t-a-o.com/en/collection-tao-tweens/tao-tweens-girl/accessories/3-pairs-of-socks-with-sequins-and-bands-rumba-red-89417.html