I/O Merino Contact Boy Brief
Here's what other sites are saying:
Wool underwear' No, we're not kidding. The I/O Bio Women's Contact 1 Boy Brief's silky-smooth Enigma knit caresses your nether-regions with never-itchy, naturally anti-odor, and super-soft merino wool. A touch of elastane ensures that it doesn't sag or bag, and the wide elastic waistband stays put without digging. Out on the trail, skiing the steeps, or every day, these boy-cut undies offer killer comfort.