Comfort and cotton
Combed cotton is cotton whose fibers have undergone a combing operation to lengthen them and make the fabric even softer, thus guaranteeing better quality. The resulting tennis sock is softer and more pleasant to wear.
Friction zones are a little thicker to avoid overheating with the shoe.
Maintenance
Elastic mesh corresponds to the use of a material called elastane, which is much more elastic and holds the foot better. Your tennis sock may look smaller, but this is due to its greater elasticity. What's more, it's more resistant to repeated washing.
An elastic band has been added to the middle of the foot for better support, but the band is not felt on the foot, and in no way cuts off blood circulation.