Duo pack with 300 ml Tech Wash and 300 ml TX.Direct Wash-In. When we work hard, we sweat. The evaporation of sweat has a cooling effect, and we feel comfortable. However, when it rains, we don’t want to get wet. So we wear waterproof outerwear to stay dry. The waterproof fabric must be designed to allow moisture to evaporate or 'breathe'; otherwise, our sweat cannot evaporate, leading to overheating and becoming damp from condensation. If the outer fabric of your garment absorbs water and becomes 'soaked', breathability is reduced, making you feel clammy and wet. Nikwax Tech Wash revitalizes the durable water repellent (DWR) treatment, prevents water absorption, maintains breathability, and keeps you comfortably dry. Your rain gear might absorb water simply because it is dirty. Start by cleaning it with Nikwax Tech Wash. For relatively fresh stains or recently applied treatments, the durable water repellent (DWR) capability can be revived just by cleaning. Once the clothing has been heavily used, you will need to add DWR protection with Nikwax TX.Direct after cleaning with Nikwax Tech Wash.