CASTELLI MEN'S SOCKS/BOOTIES
Rosso Corsa is the designation Castelli uses for their best gear. The Rosso Corsa socks are their best, and since Italians value style you can rest assured that they come in several cuff lengths. The Rosso Corsa 13 comes in a 13cm cuff, the longest Castelli makes.
The Rossa Corsa are woven with Meryl Skinlife antibacterial fibers. The sock is thus wicking, will feel dry pretty much in just about every circumstance save a rainstorm. The top of the foot is a diaphanous web, ultra-thin and extremely breathable. In the middle of the foot, the arch area, there is a high-density band woven in. You won't notice any difference in thickness, but you will feel like the sock is becoming one with your foot rather than sliding around between your foot and your shoe. The toe has a flat seam for comfort and the cuff at the top is folded over to keep the sock from slipping.
The Castelli Rosso Corsa 13 Sock comes in two colors: Black and White. The toes, heels, mid-foot band, and cuff logos are in contrasting colors. Sizes are S/M, L/XL, and 2XL.