UK's Most Popular Men's Underwear: Boxer Briefs

Boxer briefs are the clear favorite for British men, combining the support of briefs with the coverage and chafe-prevention of boxers.

Why They Win

• Fit: Snug elastic waist, longer leg (mid-thigh) prevents ride-up and thigh friction.
• Fabric: Cotton-elastane blends dominate—breathable, stretchy, shape-retentive.
• Versatility: Work under slim trousers, gym shorts, suits; flatter most body types.
• Variety: Endless colors, prints, waistband branding, pouch designs.

Market Context

Major retailers (M&S, Primark, Uniqlo, Calvin Klein, Hugo Boss, Bamboo brands) all prioritize boxer briefs. Traditional loose boxers and briefs retain niche followings but trail significantly in sales volume.