Color block cotton trunks — style meets all-day comfort.

🎨 Fashion-Forward Color Block Design

These Seobean trunks feature a bold color block pattern that sets them apart from basic solid underwear. The contrasting panels create a modern, athletic look that looks great — whether under jeans or as a confident standalone piece.

✅ 92% Cotton + 8% Spandex — Breathable & Stretchy

Made from a premium blend of 92% cotton and 8% spandex, these trunks offer the soft breathability of natural cotton with just enough stretch for a flexible, stay-put fit. The cotton-rich fabric keeps you cool and dry throughout the day, while the spandex ensures the trunks move with you without losing shape.

⚡ Modern Trunk Fit

Cut in a modern trunk silhouette with a shorter leg that sits cleanly under fitted pants. The mid-length design offers a sleek, athletic look while providing full freedom of movement — flattering on all body types.

🧵 Durable Stitching & Reinforced Seams

Reinforced stitching ensures these trunks maintain their shape wear after wear. The elastic waistband stays put without rolling or digging in, providing all-day comfort whether you are at the office, the gym, or lounging at home.

📏 Available in Multiple Color Combinations

Choose from Black, Blue, and Gray color block combinations — each featuring the same 92% cotton + 8% spandex fabric for consistent fit and comfort across your selection.

Shop more men's trunks or explore the full Seobean collection.