Mertra Seam Tape Shell Jacket — The Seam Tape Path and What It Draws
- The seam tape route across the front body of the Mertra Seam Tape Shell Jacket traces an arch — two lines descend from the hood junction, curve outward across the upper chest, meet at the centre front, and continue down toward the hem. The curve is wide enough at its highest point to span most of the chest width, and symmetrical enough that the overall shape reads as intentional geometry rather than functional routing. On the flat black shell surface, the grey reflective tape provides sufficient contrast to make this arch visible as a standalone graphic element — no print, no embroidery, no additional decoration required.
- The tape continues uninterrupted along both sleeves from shoulder to cuff, and along the hood seam from the crown edge down to the collar junction. This means the full seam tape system — front arch, sleeves, hood — traces the structural skeleton of the jacket as a continuous reflective line across the entire garment. Under direct light, the reflective quality of the tape activates, making the seam lines glow against the black shell in a way that is consistent with the reflective language established in the Mertra Stealth Reflective range.
- The left sleeve carries a small Mertra wordmark in printed text — the only conventional branding on the exterior of the jacket. It sits low on the sleeve and reads at close range, leaving the seam tape system to operate as the primary visual identifier of the garment from any distance.
Mertra Seam Tape Shell — Construction, Pockets, and Functional Details
- The Mertra Seam Tape Shell fabric is a matte black nylon — the same shell material family as the Stealth Reflective Jacket, providing light wind resistance and water repellency for light precipitation. The full-length centre zip runs to the chin with a metal slider, and a zip pocket sits at the right chest, flush with the front panel and positioned below the seam tape arc.
- The hood is structured with enough volume to sit over a mid-layer without pulling at the collar, and the hood seam tape runs along its outer edge, framing the opening with the same reflective line that structures the rest of the jacket. The hem and cuffs are cut clean without additional adjustment hardware visible in the product image, keeping the lower silhouette uncluttered.
- The overall silhouette is boxy and slightly cropped — the hem sits higher than a standard outerwear length, which positions the front chest arch graphic at a proportionally central point on the body rather than letting it read as a high-chest detail on a longer jacket.
Fit Notes and Styling
- The boxy shell cut layers cleanly over a mid-weight fleece or heavyweight crewneck without pulling across the shoulders. Worn as an outer layer, the seam tape arch at the chest remains the visible design element regardless of what is worn underneath — the tape sits on the shell surface rather than being affected by the layer beneath.
- The all-black shell with grey-reflective tape works across a wide range of outfit directions. The reflective seam lines introduce a technical quality that reads most deliberately alongside other performance-adjacent pieces — the Mertra Tech Joggers or Sweatpants extend the seam tape jacket's technical language into the lower half of an outfit without requiring an exact match.
Care Instructions & Common Questions
- Does seam tape require special care to maintain adhesion over time? Seam tape can delaminate from the shell fabric if subjected to high heat — machine wash cold, gentle cycle, and always hang dry or tumble dry on the lowest possible setting. Avoid ironing directly over the tape lines, as heat will soften the adhesive layer and reduce the tape's bond to the underlying fabric.
- Does the reflective quality of the tape fade with washing? Reflective tape retains its optical properties best when washed cold and air dried. Repeated high-heat drying degrades the reflective coating over time, reducing the intensity of the light activation. Cold washing and air drying preserve both the tape adhesion and the reflective surface simultaneously.
Get Your Mertra Seam Tape Shell Jacket — Construction as Design
The Mertra Seam Tape Shell Jacket is available in black. The Mertra Seam Tape Shell construction maps the jacket's structural seams as a reflective arc across the chest, sleeves, and hood — a functional material that doubles as the garment's primary graphic system. Select your size above to order.
