The way in which you choose to waterproof is essentially a matter of taste. Waterproofing spray and wash-waterproofing are both suitable for basic waterproofing of functional textiles, and for reactivating water-resistant properties. The main difference is in the handling. While a spray requires more care and effort, e.s. Wash-waterproofing aqua protect duo is as easy as putting the washing machine on: Open the drum, throw in the laundry - open the draw, add aqua protect duo - done. Waterproofing in the machine ensures that the entire textile is waterproofed, as every part of the garment comes into contact with the waterproofing agent. One advantage of e.s. Waterproofing spray is its flexibility and dosage: Thanks to “manual” waterproofing, individual parts of a garment can be waterproofed quickly. Water-based waterproofing spray is suitable for all climate membranes and other waterproof, breathable garments, soft-shells, fleece, etc. With the e.s. Wash-waterproofing aqua duo protect, EVERYTHING in the washing machine can be waterproofed. Jeans, knee-breeches, sweatshirts, work jackets, soft-shells... Textiles without waterproof properties can be made dirt and water-resistant with changing their look and feel.