There are numerous benefits to using DownTek™ products. For one, the material reduces the amount of water absorbed by up to 300%. Household energy consumption is reduced too, since DownTek™ products dry up to 67% faster than regular down - saving time in the tumble dryer! DownTek™ also helps to protect the quality of the down whilst adding no additional weight it.
The laundry study that found Granger's champion was conducted by the International Down & Feather Testing Lab (IDFL), and set out to find a cleaning detergent that would best protect these beneficial qualities of DownTek™ down.
Andrew Payne, of DownTek™, stated that the company 'commissioned a wash durability study with IDFL - the global leader in filled textile testing - in order to find a detergent that would preserve our technology. The study concluded that Granger’s Down Wash detergent was by far and away the superior product to maintain our durable water repellency (DWR) qualities in a like-new condition through multiple washings.”
The study tested Granger’s alongside seven other popular, commercially-available products.