Pick up any pair of underwear from your drawer right now. Turn it inside out. Run your fingers along every seam — every ridge, every bump, every line where two pieces of fabric are stitched together. Count them.
Most men's underwear has between 12 and 18 seams. That's 12 to 18 potential friction points pressed against your skin for 16 hours a day.
The problem with traditional construction
Seams exist because traditional garment construction works by cutting flat pieces of fabric and sewing them together. It's efficient for manufacturing but terrible for the body, which is — and this shouldn't be controversial — not flat.
Every seam creates a pressure point. Over hours, those pressure points cause irritation. Over days, they cause chafing. Over months, the thread wears against the fabric and the seam begins to fail. That's why the inner thigh and waistband are always the first to go on cheap underwear — they have the most seams under the most stress.
How we build differently
KÖRPER underwear uses between 3 and 6 seams, depending on the style. We achieve this through three techniques:
Ultrasonic bonding — Instead of thread, we use high-frequency vibrations to fuse fabric layers together. The result is a bond that's smoother than a seam, stronger than stitching, and completely flat against the skin. This is the same technology used in medical textiles and athletic compression gear.
Laser-cut edges — Traditional cutting leaves a raw edge that needs to be folded and stitched. Laser cutting seals the edge of the fabric as it cuts, eliminating the need for a hem entirely. This is how we achieve the invisible-edge leg openings that sit completely flat under trousers.
Three-dimensional knitting — Our pouch is not two flat panels sewn together. It's a shaped, three-dimensional construction that follows the contours of the male anatomy. One continuous piece, no center seam. Support without compression, space without excess.
What you feel
The first time you put on a pair of KÖRPER, the thing you notice isn't softness — though that's there. It's absence. The absence of ridges. The absence of bunching. The absence of that constant, low-grade awareness that you're wearing underwear at all.
That's what seamless means to us. Not just fewer stitches — but fewer reasons to think about what's underneath.
