



Clairefontaine Triomphe Self Sealing Envelopes - Box of 25
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The Gold Standard of Correspondence: Clairefontaine Self-Sealing Envelopes
Elevate your personal mail from a simple message to a tactile event with Clairefontaine Envelopes. Known globally as the "home of the best paper for writing," Clairefontaine brings its 150-year French heritage to the art of the envelope. These are not merely carriers for your letters; they are a sophisticated extension of the writing experience, designed to protect your thoughts with the same luxury and care you put into composing them.
Whether you are sending a formal invitation or a heartfelt handwritten note, the ultra-smooth finish and substantial weight of Clairefontaine paper ensure your correspondence makes a stunning first impression.
✨ Signature Features: French Craftsmanship
Every box of Clairefontaine envelopes is engineered for the modern correspondent who values both elegance and efficiency.
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World-Renowned Vellum Paper: Crafted from Clairefontaine’s signature 90g satin-finish vellum, these envelopes are remarkably bright, opaque, and incredibly smooth to the touch.
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Effortless Self-Sealing: Forget the mess of traditional adhesive. These envelopes feature a premium Self-Sealing strip. Simply peel and press for a secure, permanent closure that keeps your contents safe throughout their journey.
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Superior Opacity: The high-density paper ensures that your private correspondence remains private. Even under bright light, the contents of your letter will not show through.
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Fountain Pen Friendly: Just like their legendary notebooks, these envelopes handle ink beautifully. Address your letters with a fountain pen without fear of feathering or bleed-through.
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Two Essential Sizes: Each set comes conveniently packaged with 25 envelopes per box, available in two versatile dimensions to fit your stationery needs:
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4½ x 6⅜ (C6): The classic choice for A6 cards, postcards, or twice-folded A4 sheets. 25 envelopes matching 6120C & 6124C
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4⅜ x 8⅝ (DL): The professional standard, perfect for three-fold letters and business correspondence. 25 envelopes matching 6170C & 6174C.
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🖋️ Why It Belongs in Your Writing Desk
Clairefontaine envelopes are the preferred choice for the dedicated correspondent for three key reasons:
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The Professional Touch: The brilliant white finish and crisp edges convey a level of professionalism and respect that standard office envelopes cannot match.
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Ink Versatility: The smooth surface is a playground for calligraphers and pen enthusiasts, allowing nibs to glide effortlessly while showcasing the true color of your ink.
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Time-Saving Luxury: The self-sealing mechanism is a modern convenience that doesn't compromise the "old-world" feel of the high-quality French paper.
🔍 Explore the Clairefontaine Collection
Clairefontaine offers a vast ecosystem of paper products designed for the discerning writer. Explore other notable variants at Pen Boutique:
The Correspondent’s Perspective: "There is a distinct 'snap' when you seal a Clairefontaine envelope. It feels permanent and protective. When you address it with a fountain pen, the ink sits on top of the paper with a brilliance that makes the recipient's name look like a work of art."
To learn more about the history of the Etival mill and tips for modern etiquette in letter writing, visit our official blog.
| Brand | Clairefontaine |
| Colors | Ultra White |
| Material | Paper |
| Number Of Items | 25 Envelopes per box |
| Type | Envelope |
















