Heat Holders Children's socks 34-39 purple

How they work
The Heat Holders achieve their outstanding heat-retaining properties through a completely unique three-stage knitting process.
The acrylic yarn used for Heat Holders feels like cashmere and is a highly sought-after, yet difficult-to-source product, with limited production capacities worldwide. This superior yarn gives Heat Holders their unmatched soft and comfortable cashmere feel.
Many technological innovations were required for the famous long-looped thermal fleece in our socks, and our machines had to be completely reconfigured.
Our strictly guarded unique brushing process maximizes the amount of air pockets that trap warm air inside the sock.