Good raincoats are not bargains. That’s why it makes sense to buy one that doesn’t work on the bike tour, but also in everyday life.
It should be a lightweight, versatile jacket against bad weather. A small packable rain jacket for packing bag or briefcase should always be ready for use when it really needs to be.
There are a number of models and the selection is often not easy. A more close-to-body cut, good mobility in the arm and shoulder area as well as the best possible vapour permeability and sweat transport are important factors when choosing a rain jacket. It is recommended a shorter hull length for wheel jackets and a hood that can be easily stowed away or at least lashed without flutter.
Coatings and membranes made of breathable, microporous polyurethane dominate the market and are offered by many brand names such as Ceplex or BD Dry. Particularly exciting are the developments in rain protection in relation to the environmental impact of fluorochemistry in impregnations (so-called PFCs). This is often discussed at the moment and many suppliers now refer to or carry eco-labels or recycled materials. But the development is rapid and many new achievements are being made in this area too.
At the end you can sayt a good rain jacket is a good rain jacket and belongs in the saddle bag of every cycling trip!