


Oya's Men's FR Boxer Briefs are flame-resistant underwear engineered for firefighters, military personnel, and anyone who works in high-risk environments. Free from PFA, PFOA, and other toxic chemicals commonly used in flame-resistant gear that can cause health problems.
Breathable, moisture-wicking fabric keeps you cool and dry even under heavy protective equipment. Designed with medical input to reduce infection risks that can occur when wearing non-breathable gear for extended periods.
Cooling technology helps regulate temperature during intense activity. Made from non-toxic fabrics that don't compromise on protection.
Trusted by professionals who face enough risk without their underwear adding more. Also suitable for anyone who wants toxin-free, high-performance underwear.


• Flame-resistant boxer briefs
• PFA-free, non-toxic materials
• Breathable, cooling, moisture-wicking
• Reduces infection risk
• Made in USA, designed for first responders
"They're very comfortable. They don't roll up. I can feel like I can sweat and feel like it's breathable. It supports you and there's no friction. No issues with chafing or sweating."
Oya creates high-performance activewear engineered for airflow, comfort, and confidence — during workouts, cycles, and everything in between. Their patented fabrics and leak-resistant designs reduce irritation, support moisture control, and move with you through real life. From leggings to underwear, Oya’s gear is made to help you feel fresh, dry, and unstoppable.