Merino wool underwear? Absolutely. The Smartwool Women’s Everyday Merino Thong is the secret weapon in your base layer arsenal—bringing high-performance comfort to your daily essentials. Designed with superfine Merino wool blended with TENCEL™ Lyocell for enhanced softness and breathability, this thong feels as good at mile 30 as it does during a long workday.
The slim fit hugs your curves without bulk, while the lightweight knit delivers moisture-wicking, odour resistance, and natural thermoregulation. A soft elastic waistband keeps everything in place—so you can move freely, whether you're running errands or trails.
This isn’t just underwear—it’s Merino performance, where it counts.