Stance Regulation Butter Blend boxer briefs. Essential boxer briefs from Stance in their ultra-soft Butter Blend. Tailored boxer brief fit with medium support and a bit of wiggle room. Feather seam construction for a seam-free feel. Driven by the design philosophy of creative expression and performance-enhancing function, California-based brand Stance evokes a spirit of individuality with its socks, crafted using quality materials in the best fit.