Nikwax Tech Wash / TX Direct Wash-in - Cleaner and Reproofer - 1 Litre
Your raingear could be soaking up water just because it is dirty. First, try cleaning it with Nikwax Tech Wash, and if it is fairly new, or recently re-waterproofed, the Durable Water Repellency (DWR) will be revitalised just from cleaning.