Q36.5 Rain Shell Aero Jersey in the BIKE test: A lightweight option for changeable conditions

An unusual design with short sleeves

The Rain Shell Aero plays a special role in the test range. Instead of a traditional long-sleeved jersey, Q36.5 opts for a short-sleeved weather-protection layer, which is combined with separate arm warmers.

This creates a versatile clothing system for a range of temperatures and weather conditions. Without arm warmers, the jersey is suitable for mild conditions and light showers; with arm warmers, its range of use is significantly extended.

The manufacturer uses a three-layer fabric with a double membrane and a quick-drying inner layer. This is designed to distribute moisture efficiently and reduce the typical feeling of dampness on the skin. The design is aimed primarily at sporty riders and high-intensity use.

The lightest model in the test

Weighing just 205 grams in size L, including arm warmers, the Q36.5 Rain Shell Aero is the lightest model in the entire comparison.

This weight advantage is particularly noticeable on long climbs, challenging rides and in changeable weather conditions. For those who don’t want to carry a full-fledged rain jacket, this offers an extremely lightweight alternative.

With a top score of 1.0 for weight and pack size, the Italian model sets the standard amongst the models tested.

Race-Fit for competitive mountain bikers

In terms of fit and comfort, the Q36.5 achieves an impressive score of 1.6. The jersey fits very close to the body and consistently adheres to the ‘Race Fit’ concept. There is no excess fabric, and the fit remains crease-free even in a sporty riding position.

We recommend that riders who are between two sizes opt for the larger size. Those who prefer loose-fitting clothing should bear in mind the slim fit when choosing a size.

The close-fitting design improves aerodynamics and is particularly suited to sport-oriented mountain bikers who prefer a snug fit.

Reliable protection against wind and rain

In terms of weather protection, the Rain Shell Aero scores 2.0. The jersey offers good protection against wind, spray and brief showers.

However, its strength does not lie in maximum insulation or in use in continuous rain. For very cold or persistently wet conditions, a proper rain jacket remains the better choice.

However, it is precisely on fast trail runs or challenging hikes with changing conditions that the design really comes into its own. The combination of low weight, breathability and weather protection works exceptionally well in this context.

Functional, yet deliberately minimalist

The features are practical but deliberately minimalist. The jacket comes complete with a padded collar, a silicone hem, reflective elements and a lined two-way zip.

The latter makes it easier to regulate body temperature whilst cycling and enhances comfort under varying loads. Q36.5, on the other hand, has deliberately chosen not to include any additional pockets.

This fits in with the overall concept: the Rain Shell Aero is designed to be an outer layer for protection against the weather, rather than a traditional jersey with plenty of storage space.

A high price to pay for a specialist approach

At 250 euros, the Rain Shell Aero is clearly in the premium segment. Anyone looking for a versatile thermal jersey or a classic rain jacket will find cheaper alternatives.

The Q36.5 is instead aimed at cyclists looking for an extremely lightweight, aerodynamic and technically sophisticated clothing design. For this very target group, the model offers a unique combination of weather protection and minimal weight.

Q36.5 Rain Shell Aero Jersey: Product information and BIKE review

Editor’s conclusion

The Q36.5 Rain Shell Aero Jersey takes an unusual but well-thought-out approach. Weighing just 205 grams including arm warmers, it is the lightest model in the test and impresses with its aerodynamic race fit and the high versatility of its layering system. It offers good protection against the elements, but is no substitute for a proper rain jacket in persistent rain. Recommended for sporty mountain bikers who prioritise low weight, great freedom of movement and maximum efficiency over extensive features or high protection against the cold.