In both summer and winter, G4 dimension’s base layers protect the cyclist against changes in temperature. The base-layer’s perforated fabric provides optimal moisture transfer and helps prevent chills.

Take advantage of an launch offer on our new cycling undershirts (black short sleeve and sleeveless as well as on the new GridMesh) with the promotional code PROTECT5, valid until May 04!

  • This black sleeveless cycling undershirt has been designed like the first one but this time in black to complete all your cycling outfits. This technical sleeveless undershirt will improve your thermal comfort during your bike rides and will offer you a good evacuation of the perspiration thanks to its ultra technical and performing fabrics.

    49,17 €
    In Stock
  • This black short sleeve cycling undershirt is ideal for your cycling trips, training or races. Designed in white and black to give you a choice of color.Its elastane fabric adapts to all body types for optimal comfort. The technicality of this undershirt ensures an optimal evacuation of perspiration and a good regulation of body temperature.

    57,50 €
    In Stock
  • This white sleeveless "Grid Mesh" cycling undershirt is even lighter and more breathable than our other undershirts!Thanks to its ultra-technical fabrics and fibers, it will protect you and feel like a second skin during your bike rides. Comfort and lightness guaranteed!

    45,83 €
    In Stock
  • This short-sleeved base layer is ideal for all bike rides, including training and racing. Its stretchy fabric suits all body types and is very comfortable. The base layer’s technical features allows for optimal breathability and regulation of body temperature.

    57,50 €
    In Stock
  • While designed specifically for cycling, this sleeveless base layer improves thermal comfort during sporting activities. Its material mix wicks away perspiration and eliminates odours. Super stretchy, this sleeveless base layer fits all body types.

    49,17 €
    In Stock
  • Save 15% if you buy these 2 base layers.

    90,67 €
    In Stock
  • The good and warm base-layer is an essentiel item in a cyclist’s armoury. The fist-layer has a fundamental role to play, when you dress up for winter training. It protects your upper body, regulates the temperature depending on the intensity of your effort: whether you’ve gotten hot under the collar or are getting chilled on a steep descent.

    65,83 €
    Product available with different options
  • The base-layer is often the forgotten item in a cyclist’s armoury. Yet it has a fundamental role play. It protects your upper body by regulating the temperature depending on the intensity of your effort: whether you’ve gotten hot under the collar or are getting chilled on a descent. Our winter heat-regulating base-layers will serve you well in winter.

    46,73 € 65,83 €
    In Stock
  • Save 12% if you buy these 2 winter base layers in black and white.

    101,38 €
    Out of stock


    Larisa our ambassador has tested our winter accessories essential to every cyclist in  this season! She shares her feelings.!

    “A true cyclist rides not only when its warm and sunny outside. As a devoted cyclist, I ride also in autumn and harsh winter too. Thanks to G4 winter range and accesories keeps me warm and stylish!”

    Read more
  • Seamless technology : the ultimate excellence !

    The human body adapts quickly and effectively to a sport activity. The pulse is accelerating to increase the oxygen transport in the blood vessels...

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