Here's what other sites are saying:
Soft merino wool in the Ortovox Women's Competition Boxer makes it surprisingly soft, breathable, and comfortable. The wool regulates moisture as well as any synthetic, while also offering superlative temperature regulation andAprobably most importantlyApreventing odors from taking over. The Competition Boxer is made from lightweight 190g wool, but Ortovox inserted mesh in the hot spots for ventilation and 240g merino in cold-sensitive zones for comfort. A touch of nylon ensures durability, and spandex provides a snug, wrinkle-free fit.