Pretty sure mine wont be available else where.
Mine are unbranded, i mean not a famous brand like Yonex, Adidas, or something.
Its thick around the ankle & pretty tight to.
Thick on the heels area, but thin around the middle/arc area, & become thick again up to the end.
The thick area also had some texture, stripe like (thick, a thin line of thin area, thick again,…) Which help prevent slipping inside the shoes.
Quite comfortable for playing but for long use like for daily work are not recomended. At then of my work day, taking my socks off, leave some mark to my skin due to long time under socks preasure.
If you can find something similar, it might works to.
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