GRAMMONT 55 - Deep Winter Merino Jersey


Extreme cold jersey

The GRAMMONT 55 is the ideal jersey for autumn and winter rides in bright sunny weather. Worn with a base layer - or two, depending on your sensitivity to cold - it’s the practical lightweight alternative to a heavy winter jacket. A discreetly single-colour winter jersey, for lightweight aeration and comfort. 

2 colours:

  • Blue shadow
  • Twilight blue

More details

GRAMMONT 55 - Deep Winter Merino Jersey

 30-day free trial

 Free standard EU shipping

 Delivery worldwide

  • S
  • M
  • L
  • XL
Guide des tailles

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 33 1 75 50 73 95

Full description

The GRAMMONT 55 extreme cold jersey will see you through all your longer winter rides

It’s tailored in a comfortable, fully breathable winter-weight merino wool blend that combines the best of merino wool (moisture management, softness and comfort) with an enhanced interior insulation barrier of fleece brushed tricot.

It can be worn as a winter jersey under a wind - or waterproof jacket for harsher weather, and in winter sunshine, with its functional rear pockets to hold refreshments or the necessary to stay in touch, it’s a practical and flexible alternative to a jacket.   

Like the BRIANÇON 53, the unique simplicity of the design, with shoulder line set forward and the two side panels that form underarms gussets, gives it a distinctive look, the mark of sportsmanship and elegance. 

The stretch grosgrain ribbon trim provides subtle colour contrast and highlights the reinforced sleeve edges, rear pocket line and low front line of the jersey. 

With its winter-weight thickness and structure, the double jersey in the GRAMMONT 55 provides the necessary qualities for an extreme cold jersey: warmth and ventilation. Worn with a thin base layer, you’ll be perfectly dressed to brave the elements.

Ideal temperatures: 0 > 15°C. Between 0° and 5°C, we advise to couple it with a suitable underlay in merino, baselayer type, and a light jacket / vest if the wind blows.


  • Full-length front zip 
  • Shoulder line set forward 
  • Side panels form underarms gussets 
  • Concealed anchor cord at waistline 
  • Key pocket on right side with invisible zip 
  • Pump pocket at rear 
  • Three large-volume rear pockets 
  • Grosgrain ribbon trim  
  • Stretch silicone non-slip inside band 
  • Central lower back reflective band 
  • Brand sign embroidered on chest 
  • «Louison Bobet» embroidery 
  • Made in Portugal


  • 68% polyester
  • 28% merino wool*
  • 4% elastane

* Mulesing Free Certify


  • Machine wash at 30°C
  • Use delicate wash cycle 
  • Wash with similar colours 
  • Do not use bleach
  • Do not machine dry 
  • Cool iron 
  • Do not dry clean 

Why merino wool?

Merino is light, natural and soft against the skin. It will partner you on your bike rides whatever the weather or situation. Its insulation and breathability, together with its original antibacterial qualities, considerably reduce unpleasant sweat-related body odour, making it a pleasure for riding and a pleasure to wear.

Sizes guide

The GRAMMONT 55 jersey must be worn «close to the body» in contact with the skin or with a skin baselayer, to fully benefit from the qualities of merino wool. We advise you to refer to the following table to make the right choice:

  • Shoulder line: measured distance arm falling between each outer end of the bones of your shoulders.
  • Chest circumference: distance taken around the body at the height of the chest.
  • Arm length: measured distance arm falling between the shoulder bone and the wrist bone.

In case you are between two sizes or you prefer a more confortable feeling, we suggest you to opt for the larger size.

Haute couture ! Un maillot manches longues à réserver pour les belles sorties. On ne mettra rien dessus, pour ne pas cacher un si beau design et une si belle finition. Coupe très ajustée, on ne mettra qu’un simple maillot de corps/baselayer en dessous. Parfait pour des températures oscillant entre 5 et 10°C. Son grand confort et sa coupe idéale permettent d’envisager sereinement de longues sorties.


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