"I use BOOTDOC products because the quality of these products is excellent for all sports activities. Whether in the summer when running or in the winter during various winter sports activities, such as skiing for me, I use the heat socks comfort surround XLP 1P BT / XLP ONE. Now, cold toes during training and in competitions are a thing of the past. Thanks to BOOTDOC, I can therefore focus much more on the performance process during training.