Eco-Conscious Fibers from Lenzing
We source our TENCEL™ Lyocell fibers from Lenzing, a global leader in sustainable textiles. These fibers come from FSC® certified, fast-growing trees that require no irrigation, pesticides, or toxic chemicals. Lyocell is biodegradable, naturally antibacterial, and odor-resistant, absorbing 50% more moisture than cotton. Each pair of OSOW underwear lets you enjoy high-performance comfort while supporting a cleaner, greener planet.
Crafted with Care in Portugal
Every pair is made in partnership with a small, third-generation family-run manufacturer in Portugal. This collaboration ensures premium quality and ethical production, supporting traditional craftsmanship while adhering to fair working conditions. The result is a hand finished, seamless, label-free fit that feels luxurious, moves with you, and lasts for years—combining comfort with responsible manufacturing.
Closed-Loop, Environmentally Responsible Process
TENCEL™ Lyocell is produced through a closed-loop process, recycling almost all water and solvents used during production. Minimal waste and non-toxic methods mean no harmful by-products are released into the environment. Biodegradable and eco-friendly, Lyocell provides natural thermal regulation, moisture management, and antibacterial properties. With OSOW boxer briefs, you choose a product that is as gentle on the planet as it is on your skin.
Eco-Friendly Fabric
Lyocell fibers, derived from
sustainable eucalyptus wood pulp.
Breathable Comfort
Keeps you cool, fresh, and comfortable throughout the day
Moisture-Wicking
Pulls sweat away from skin, preventing chafing and irritation
Perfect Fit Technology
OSOW boxer briefs are designed for superior comfort, performance, and sustainability.
Long-Lasting Durability
Retains shape, strength, and quality even after many washes