The Björka sleeveless windbreaker vest can be worn in any circumstance. When worn by the cyclist, it does not hamper or hinder movement. Like a bike jacket, it provides good protection against the wind while providing optimal heat dissipation. The Björka cycling vest can also fit in a pocket, on the back of the jersey for example. Thus, it can be carried and stored quickly, all without leaving the bike for the most skilful! The cycling vest is also waterproof, although it will not offer the same protection as a waterproof cycling jacket. Therefore, the design of the bicycle textile will become particularly technical: it is a question of containing the weight of the bicycle textile while offering optimal protection.