Complete undersuit

The integral undersuit is the sports underwear a biker who wears leather suits must absolutely wear Skin always free from moisture and total freedom of movement turn this garment into a leading product in the market. There is no other technical garment that guarantees this degree of comfort and efficiency against accumulated perspiration, thanks to the SIXS original carbon underwear® technology.



XS - S - M - L - XL - XXL


  • Sports Motorbikes
  • Motorbike Touring

Developed with the aid of our testimonials, it is the perfect complement for your leather suit. It keeps your skin free from moisture and facilitates your movements on the seat. Experience has proven the product validity also for different uses: from its use inside diving suits to its use under the suit that is worn in free flying (paragliding, parachuting, hang-gliding, trike, etc.) or under clothes suitable for extreme temperatures.

Other pictures

  • Karel Abraham (MotoGP rider) in SIXS STX
  • Dark Red
  • Dark Green

Details STX

Carbon Underwear Fabric

SIXS products do not make you feel hot but you do not feel cold with them!

High comfort

Thanks to its elastic structure, it fits perfectly your body

Your second skin

This apparel should be used directly in contact with your skin in order to obtain the greatest results

Washing and Care

Tips for maintenance of the product


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