10 Best Mens Running Underwear 2025 in the United States

The Adidas Men's Boxer Brief Underwear (3-Pack) is designed for athletic comfort and support, making it a solid choice for active individuals. The briefs are made of 91% polyester and 9% spandex, providing a soft and stretchy fit that enhances comfort while allowing freedom of movement. The moisture-wicking fabric quickly dries, ensuring you stay cool and dry during physical activities, and the ergonomic design with a no-gap fly offers convenience and minimal seams to reduce irritation.

The plush, tagless waistband and smooth stitching further enhance comfort by limiting any potential irritation. This underwear also features no-ride-up leg construction, which helps prevent bunching and maintains a consistent fit throughout the day. These boxer briefs are well-suited for men who lead an active lifestyle and prioritize comfort and support.

The Under Armour Men's Multi-pack Standard Tech Boxerjock Boxer Brief is designed for men's running needs, focusing on comfort and performance. The lightweight, Performance Tech fabric is soft and breathable, making it ideal for active use. The 4-way stretch construction ensures flexibility, allowing movement in any direction without restriction, which is essential for running.

Additionally, the tagless design and chafe-free seams contribute to an irritation-free experience, which is crucial during long runs or intense workouts. The no-roll hem further adds to the comfort, ensuring the briefs stay in place without riding up. The performance waistband with branding is secure yet comfortable, preventing any discomfort during physical activity.

The material composition of 90% Polyester and 10% Elastane supports moisture-wicking, helping to keep you dry by drawing sweat away from the body. The streamlined fit is neither too tight nor too loose, providing adequate support without constriction. Machine washability adds convenience to maintenance. These boxer briefs are well-suited for runners who need comfortable, flexible, and moisture-wicking underwear.

The New Balance Men's 6" Boxer Brief Fly Front with Pouch, available in a 3-pack, offers several features that could make it a good choice for running. The material is a blend of 90% polyester and 10% spandex, which provides softness, breathability, and flexibility. This combination is likely to keep you comfortable and cool during runs.

The fit is enhanced by a jacquard elastic waistband and a no-ride inseam, which helps to prevent any uncomfortable bunching or shifting as you move. The tagless design also adds to the comfort by reducing irritation. Seam construction appears to be well thought out, aiming to reduce chafing. The moisture-wicking property of the fabric is crucial for running, as it will help keep you dry by drawing sweat away from the skin.

In terms of support, the boxer briefs include a fly front with a pouch, which should provide adequate support without feeling restrictive. Durability is another strong point; the fabric resists fading and is easy to care for, as it can be machine washed and dried. These boxer briefs could be a good fit for runners looking for comfortable and durable underwear.