evo.com | Nikwax Waterproofing > Nikwax Tech Wash is a non-detergent, biodegradable liquid soap which removes dirt and detergent residues while leaving the water-repellent finish on waterproof clothing, equipment and sleeping bags intact. Use Tech Wash on all of your items before re-proofing. If you think it's a good idea to put it in your hair so you don't have to wash it anymore... well, it's not. | Nikwax Tech Wash 10 oz 2026 in Green