In the running as the priciest underwear on the outdoors market, Ibex Outdoor Clothing touts its Balance Boxer Shorts as a body-mapped “second skin.” They cost $45 and are made of an itch-free wool that in my test did indeed take on characteristics of the epidermis.
The shorts are nearly seamless, stretchy, breathable, and tight. The company employs a merino wool said to measure about 17.5 microns thick. That’s much thinner than a human hair and as soft as synthetics like nylon and polypro.

Made for travel and outdoors pursuits including backpacking or trail running, the pricey underpants have features more often found in technical base-layer apparel. To be sure, the Balance Boxer Shorts are essentially high-quality long underwear with the legs chopped off.
They fit tight and comfortable around the hips and waist. Because they hug the legs, the inseam feels long for boxer shorts, traveling five inches or more down your thigh.
The company’s proprietary “Seventeen.5” fabric makes the shorts special. In addition to wool, Ibex (www.ibexwear.com) adds some nylon and Spandex for durability and stretch.
Italian knitting machines create the seamless legs of the garment, which is made in the USA. A women’s version, the Balance Boy Short, costs $29 and uses the same fabric as the men’s undies. They have a higher leg and a two-inch inseam.

I have worn the Balance Boxers for a few months, including for running, biking, and on long trips in the outdoors. They are my go-to underwear for most pursuits, as the wool fabric is breathable when you sweat and comfortable for long stretches outside. Wool can help with temperature regulation, hot or cold, as well.