Trainer 3.0 Jacket Jr Extreme and the breathable materials are

and the breathable materials are perfect for intensive workouts

The arm warmers are made of a stretchy material and have a lined inside

We recommend going up on size if you're in doubt

providing better aerodynamics

and one-hand tightening at the bottom

Trainer 3.0 Jacket Jr Extreme and the breathable materials areA light and versatile training jacket with good stretch in the sides and under the sleeves, which makes the jacket flexible and comfortable to wear even when doing bigger movements. The training jacket is wind and water repellent and has a ventilation panel on the back for greater temperature control even for higher intensity activity. These features make the Trainer suitable for activities such as running, orienteering and shorter mountain hikes.?