How do I reimpregnate my garment?

You can use either wash-in or spray. You can find laundry care products here Garment Care 

Wash the garment according to the washing advice (without fabric softener) and ensure that it is properly rinsed. The garment does not need to be dried.
Shake the bottle with impregnation. Dose according to the instructions on the package, in the detergent compartment or in the washing machine in a so-called laundry ball.
Run a short washing program at 30-40 degrees with centrifugation (see the garment's washing instructions).
Dry the garment in a tumble dryer or drying cabinet for the best effect (if washing instructions allow), it is also good to let the product dry on its own for at least 24-48 hours for the impregnation to have an effect.

Spray

Wash the garment according to the washing advice (without fabric softener) and ensure that it is properly rinsed. The garment does not need to dry.

Spray an even layer over the entire garment. In the most exposed places, you can put a second layer, for example at the shoulders, elbows, buttocks and knees.

Dry the garment in a tumble dryer or drying cabinet for the best effect (if washing instructions allow), it is also good to let the product dry on its own for at least 24-48 hours for the impregnation to have an effect.