The Flex-ST touring jacket has adaptive size adjustment for an optimal fit.
Begin press release:

Perfectly fitting clothing for motorbike riding is a must-have for several reasons. In the event of a fall, the only crush zone is between the rider and the tarmac. Protectors protect exposed parts of the body such as the shoulders, elbows and knees and should fit closely to the body so that they don?t move out of position. Motorbike clothing should therefore be neither too big nor too small and should adapt perfectly to the shape of the body. Quite apart from this, a motorbike tour is simply more fun if

your clothing fits properly.
The new iXS Tour Jacket Flex-ST has a particularly flexible fit owing to the new SIZE-ADJUST-SYSTEM! Two circumferential zips from the jacket waist band at the front over the shoulders to the jacket waist band at the back make additional widths possible. Now, even a thick quilted jacket for cold days will fit underneath this jacket! Alternatively, the jacket will also still have a perfect fit when the thermal lining

is taken out on hot days. Fluctuations in the rider?s weight can also be balanced out with different adjustments of the Tour Jacket Flex-ST. By opening or closing the zips, the width of the jacket can be adjusted by up to 8 cm. Therefore an iXS Perfect Fit!
The Tour Jacket Flex-ST is also flexible to deal with temperature fluctuations and can remain in use all year round. The removable thermal lining ensures this on the one hand. It?s ...