LD Mountain Centre Says:
The Smartwool PHD Ski Medium is a technically structured ski sock manufactured using a blend of fabrics to give the perfect balance of warmth comfort and flexibility. The PHD construction gives cushioning where it's needed but removes bulk in key pressure areas and allows the foot to breathe. This is a medium cushion ski sock for performance with great comfort.
PHD Ski Medium Features:
The PhD® Ski Medium features a medium-cushioned shin and foot, as well as a superior fit, durability and versatility. Features the 4 Degree™ Elite Fit System and ReliaWool™ Technology to create the most comfortable and durable SmartWool® ski sock yet.
This should be your first choice ski sock to go with your new ski boots as they contain merino wool,are very warm and comfortable and will bed down well in the boot as you 'seasonate' your new boots. Wash them with a 'Delicate silk & wool ' detergent at 30C in the washing machine and they will last for many years.
Tried many brands of ski sock , these are one of the best.