Latex garments don't have sewn seams. There's no thread, no needle, no stitch line. Everything is bonded — pieces of sheet latex glued together with latex adhesive, then pressed and left to cure. This is the foundation of how latex construction works, and it's also why the seam type matters so much visually.
There are a few different methods, and they produce very different results on the surface of a finished piece.
Butt seams
The most common join in latex clothing. Two edges are brought together and bonded so they meet flush, with no overlap. Done well, a butt seam is almost invisible — a fine line on the surface, nothing more. Done poorly, it gaps, or the edges don't align cleanly, and the join reads as a ridge or a break in the surface.
Butt seams are the standard for most flatlock-style construction. They keep the silhouette clean and minimise the visual interruption across the body. For pieces where the seam placement is intentional — following the contour of the hip, running along the outer leg — a well-executed butt seam disappears into the design.
Overlap seams
One edge laps over another before bonding. This creates a raised line on the surface — visible, tactile, deliberate. Overlap seams are structurally stronger than butt seams, which is why they're used in areas under higher stress: crotch seams, shoulder joins on heavier pieces, anywhere the material is likely to be pulled repeatedly.
The raised line they create can be a design feature or a liability depending on where it falls. Across the chest or along the outer thigh, an overlap seam reads as a detail. Across the inner thigh or under the arm, it becomes a pressure point after an hour of wear.
Piped seams
A strip of latex — usually a contrasting colour or finish — is bonded over the join. This covers the seam entirely and replaces it with a visible line of trim. Piped seams are used decoratively, to define panels, to add colour contrast, or to reinforce joins that will be under stress.
They add weight and thickness at the seam line, which changes how the garment sits. On a structured piece — a corset, a fitted jacket — this is usually an advantage. On something lightweight and fluid, it can interrupt the drape.
Invisible bonded seams
The most technically demanding option. The join is made from the inside of the garment, with the adhesive applied to the reverse side of the latex so nothing shows on the outer surface. When executed correctly, the seam is genuinely invisible — no line, no ridge, no variation in surface texture.
This requires precise alignment and a longer construction time. Any misalignment is permanent; latex adhesive bonds on contact and doesn't allow repositioning. It's the method we use for pieces where the surface needs to read as completely uninterrupted — certain bodysuits, display pieces, photography commissions.
Why it matters on the body
Latex is reflective. Light hits the surface and bounces back, which means any variation in surface level — a ridge, a gap, an uneven bond — is immediately visible. A seam that would be invisible on matte fabric reads clearly on latex. This is why seam type and seam placement are design decisions, not construction afterthoughts.
The same garment made with different seam types will look different in photographs, under stage lighting, and in a room. A butt seam and an overlap seam running along the same line of the body produce two distinct visual results. Neither is wrong. They're just different choices, and they should be made deliberately.
We discuss seam construction as part of every fully bespoke commission. Learn more about how we approach custom builds.
Mayfair Latex — Made in Britain, fully bespoke.