Our midweight, comfortable Women's PhD® Ski Medium socks want to help make every day on the slopes feel like your best day yet. They are designed with a wider welt to help ensure the perfect fit and body-mapped mesh zones help keep things breathable. Featuring our Indestructawool™ technology for enhanced durability and our 4 Degree™ elite fit system for a dialed, performance-oriented fit, our warmest, thickest ski sock helps provide the ultimate in-boot comfort for a full day of skiing.