Activeseam

A revolutionary New Stitch

ActiveSeam 3 – Merrow’s newest innovation – builds on its predecessors with technically superior design that cannot be replicated by any other machine on the market. ActiveSeam 3 proves to be 30% stronger than flatlock, while maintaining unprecedented stretch.

What’s New 

  • 3 distinct stitch configurations with up to 12 design options

  • Joins different-textured fabrics, including non-wovens and neoprene 

  • Requires less thread and maintenance than traditional flatlock machine

  • Increased processing abilities for thicker materials and up to 8 layers of fabric

  • Easily translates into the overlock section of a factory

Outdoor active wear
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While ActiveSeam retains the flat profile of the six thread flatlock stitch, it is 30% stronger when using the same thread, fabric, and SPI. Due to its low profile and flexible design, ActiveSeam 3 fits and moves with human bodies better than any other stitch. Next-to-skin garments will feel lighter, stretchier, and more durable with ActiveSeam® 3. The stitch uses a specialized threading to be soft on the inside but tough on the outside for maximum comfort and durability.

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MB-4DFO spects

  • Double row of feed dogs makes sewing smoother and easier

  • Differential SPI (Stitches per inch) setting keeps seams consistently flat 

  • High lift cams allow higher clearance between the presser foot and the needle plate

  • Needle size increased from A1DF (size 70) to A4DF (size 100)

  • Wider array of options for widths (1/8, 5/32, 3/16) and plates*

30% Stronger than flatlock
8Layers of fabric sewn at once
12Distinct stitch variations
160Authorized Agents

ActiveSeam® is the softest and strongest stitch available for technical apparel. Branded and identifiable, the stitch can be easily integrated into designs due to its almost limitless variations, all created to enhance the strength of your product.

activeseam comfort

Two-thread stitch designed to be soft on skin for everything from activewear to delicates.

activeseam infused

Three threads in a three-dimensional stitch add depth and color.

activeseam slim

Two-thread stitch designed to be soft on skin for everything from activewear to delicates.

Active

Hover Box Element

Designed to keep up with athletes, ActiveSeam 3 is soft and flexible to move with you.

Applications: Athletic Uniforms, Yoga apparel, wet suits

Military

Hover Box Element

ActiveSeam 3 is strong enough to fortify military-grade materials.

Applications: Base layer, tactical gear, face mask

Non-Apparel

Hover Box Element

Durable in all applications, ActiveSeam 3 is sure to last for years.

Applications: Insulating sleeve, case accessories, oven mitts

Safety

Hover Box Element

ActiveSeam 3 has the durability to protect against wear from long-term use.

Applications: Gloves, Life jackets, knee pads

Lifestyle

Hover Box Element

ActiveSeam 3 excels in comfort and style, bringing design to the seams.

Applications: Maternity wear, hiking & hunting gear, shapewear

Medical

Hover Box Element

ActiveSeam 3 has the durability and versatility to hold in the most technical applications.

Applications: Braces, joint compression, scrubs

athletic wear
activeseam
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