Merino Wool Made For The Trail
Best Hiking Bras and Underwear for Women
Discover the seamless Merino wool hiking bras and underwear women reach for mile after mile.
BRANWYN's seamless Merino wool bras & underwear combine breathable comfort, natural temperature regulation, moisture management, odor resistance, and chafe-free support, keeping you comfortable from day hikes to multi-day backpacking and thru-hiking adventures.
Treeline Review
Best Hiking Sports Bra of 2026
"It stood out for its seamless merino wool construction that resists odor for days on trail, a low-profile design with no hardware or padding to dig under pack straps, and a first-pair guarantee that lets you try it on the trail and return it if it doesn't work for you."
Best Hiking Underwear
Chafe-Free freedom
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"Two pairs lasted me the entire length of backpacking the Appalachian Trail. Even with days unshowered the underwear did not hold onto odors the way others did. Durable and soft for 2,200 miles of sweaty, stinky hiking!"
- Stephanie G.
Trail Tested Underwear
Pacific Crest Trail Approved Underwear
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"I recently completed a thru hike of the Pacific Crest Trail, and these were the only pair of undies I took with me. I have NEVER been so impressed with underwear. I would wash these once a week and wear them for 12+ hours of hiking every day. They never, and I truly mean never, had any stink."
- Ashley
Shop Hiking Essentials
Seamless Merino Wool Hiking Bras & Underwear
Thru-hiker tested and trail-ready. Shop BRANWYN’s seamless Merino wool hiking bras and underwear made to go the distance.
FAQ
Merino Wool
Merino wool underwear and clothing is ideal for hiking because it’s breathable, quick-drying, temperature-regulating, and naturally odor resistant. Unlike many synthetic fabrics, Merino wool helps keep you comfortable across changing temperatures and multi-day wear while offering the benefits of a natural fiber.
BRANWYN’s Merino wool bras and underwear are also seamless, which helps reduce rubbing and chafing during long days on the trail. That performance has earned BRANWYN recognition from hiking experts, with Treeline Review and I Heart Pacific Northwest naming BRANWYN among the best hiking bras and CleverHiker recognizing BRANWYN among the best hiking underwear.
Yes! Merino wool is perfect for summer! The benefits of Merino wool make it ideal for hot weather. It naturally regulates body temperature, manages moisture, and resists odor to help keep you cool, dry, and comfortable in the heat. Its fine natural fibers are also lightweight and soft, making Merino wool especially well-suited for next-to-skin layers like bras and underwear.
Hiking Bras & Underwear
The best hiking bras balance support and comfort for long days of movement. As a next-to-skin baselayer, a hiking bra should be moisture-wicking and breathable to help regulate temperature, with a comfortable fit that won’t restrict movement, rub, or dig in under backpack straps.
BRANWYN’s seamless Merino wool bras have been recognized among the best hiking bras by Treeline Review, I Heart Pacific Northwest, HiHeyHello Magazine for their breathable, moisture-managing Merino wool, odor resistance, and seamless design.
The best hiking underwear fabrics are breathable, moisture-wicking, quick-drying, and comfortable enough to help reduce rubbing and chafing on long days on the trail. For multi-day hikes and backpacking trips, odor resistance is also especially helpful.
Merino wool is a great choice for hiking underwear because it combines the comfort and breathability of a natural fiber with temperature regulation and natural odor resistance. BRANWYN’s seamless Merino wool underwear is also designed to minimize areas where fabric can rub against the skin, helping reduce chafing on the trail.
The best anti-chafe underwear for hiking fits snugly without feeling restrictive and stays comfortably in place while you move. For even more comfort, look for seamless underwear that minimizes areas where fabric can rub against your skin.
Moisture management is also key to reducing the dampness and friction that can lead to chafing on long days on the trail. Choose a breathable, moisture-wicking material like Merino wool, which naturally helps move moisture away from the skin while keeping you comfortable.