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The T-shirt was the one piece we were missing. It has been so popular over the years because of its irrefutable simplicity, down to the name inspired by its T-shaped form.

Its seductive power also has to do with the heartthrobs such as James Dean and Marlon Brando who wore it so well. However, since the sixties, the T-shirt has been a victim of its own global success, and has almost become a symbol of disposable products and fast fashion.


At Bleu de Chauffe, it is durability that matters. For us, the T-shirt is an item of clothing in its own right. This is why we have created the Heavy Weight Champion T-shirt. The name speaks for itself: like the greatest boxers, it is elegant, agile, and incredibly strong, thanks to the GOTS-certified Oeko-Tex® organic cotton with an interlock knit. The Heavy Weight Champion puts the finishing touch to our wardrobe : a selection of timeless items that we make here at our workshop in the Aveyron region.


A wonderful way to celebrate spring and the joy of being outdoors, showing off your shape with this sensually simple piece of clothing.

Interlock, for a high-tech T-shirt



We wanted to use an interlock knit for our Bleu de Chauffe T-shirt, and we had it made by a family business founded over a century ago in the Somme (Northern France), renowned for their skill and with whom we share common values.


Laurent Malterre from the Malterre knitting workshop explains : “When you want to make a T-shirt, you automatically think of jersey fabric. If you want to make a beautiful T-shirt, you have to make a beautiful jersey knit. And when you want to make something exceptional, you use interlock.”


Interlock is a double-stitch knitting technique that makes a more sturdy, denser weave: you could call it ‘double-texture’. This is an expensive technique, but the expense is justified by the exceptional weight, feel, and quality interlock provides. The Heavy Weight Champion comes in at 250g/m², while a standard T-shirt is only 120g/m² !


This special structure gives superior shrinkage tolerance and a smooth, uniform surface. You will feel the difference as soon as you put on the Heavy Weight Champion T-shirt: incomparable comfort and softness, inside and out. The thicker fabric makes for better durability, making it longer-lasting and resistant to stretching and damage, even after many washes.

Malterre Knitting Workshop - Quality control
French t-shirt

Focus on fabric: renewably sourced, certified cotton



One thing which has always been at the heart of our values is the careful choice of materials. We only work with high-quality, superior, environmentally-friendly materials. The cotton used for our Bleu de Chauffe T-shirt is renewably sourced. It is GOTS certified (Global Organic Textile Standard), produced using environmentally-friendly farming methods which do not use pesticides or other harmful chemicals.

The Heavy Weight Champion T-shirt is also Oeko-Tex®-certified: the cotton it is made from has been tested and declared free of toxic substances. Choosing a Bleu de Chauffe T-shirt means guaranteeing that the cotton you wear next to your skin is completely safe and has been produced in line with strict environmental and social regulations. A positive impact for your health and the health of the planet.

Tee-shirt made in France

The Bleu de Chauffe T-shirt, made in France with love at St-Georges-de-Luzençon


At Bleu de Chauffe, we attach great importance to the origins of our materials and the ethics of our production methods. You cannot have one without the other. Every Bleu de Chauffe Heavy Weight Champion T-shirt is made here, at the workshop where we also make our bags, in St-Georges-de-Luzençon (Aveyron, France).

All stages in the production process are carried out with great care: cutting and stitching each piece, attaching the labels, quality control, ironing, packaging, and shipment… Our artisanal savoir-faire is your guarantee of a high-grade item of clothing with certified quality and traceability.

Bleu de Chauffe Workshop
Bleu de Chauffe Artisan
French men's tee-shirt

A carefully-designed fit for an unmistakable look with the Heavy Weight Champion T-shirt



In the world of textiles, the fit, or cut, is crucial for a simple item of clothing like a T-shirt. We have paid meticulous attention to the cut of the Bleu de Chauffe Heavy Weight Champion to ensure comfort, style, and versatility. It is slightly wider at the sleeves and the chest, a cut we have chosen in order to give you a great silhouette whatever your body shape.

With its sober, decidedly workwear style, our T-shirt is also an effortless match for a more chic look. The sleeve length is designed so that you can roll them up as much as you want, for a ‘cut-off’ look at the shoulders. The wide collar lets your neck breathe and leaves space for your favorite necklace.

We have paid particular attention to the details, such as the high double-thickness turned-down collar, which gives our T-shirt a subtle touch of class. Last but not least: the discreet label at the bottom, proof of the authenticity of this product and marked with the seal of quality”Bleu de Chauffe, St-Georges-de-Luzençon” – the village in the Aveyron region where we have been proudly working for a new way of production for 15 years.

Bleu de Chauffe t-shirt
  • The Heavy weight champion T shirt

    $ 50.41
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