This is a high-quality alpaca blend sock that is stretchy, non-itchy, hypoallergenic, breathable, and warm - perfect for the everyday, or a special occassion. This alpaca blend sock is ideal for those looking for a comfortable sock fit with premium warmth, and character. Peruvian alpaca is a natural, technical fiber with remarkable thermal properties - allowing air circulation on warm days (prevents sweating), and heat insulation on cool days (contains heat).