The Ridge Boxer Brief includes new performance features to improve durability and fit. Like the original Ridge Boxer, we used super-soft Merino wool next to skin for unmatched comfort. In addition, the new Ridge Boxer Brief features our new (m)Force™ Technology, a nylon core-spun Merino wool to improve strength and reduce abrasion. There’s also a hint of spandex to provide long-lasting stretch and recovery. The fit is both slimmer and longer (6” inseam) than the original. The new design features a gusseted crotch, easy-to-use fly and is sewn with flatlock seams to eliminate potential rubbing.These updates, combined with other natural Merino benefits - odor resistance, quick-drying, temperature regulation – make the Boxer Brief with (m)Force Technology a must-have for any outdoor adventure.