Goose down is renowned for its incredible warmth, lightweight, comfort, and ability to compress into a small package. But it has one major flaw: if it gets wet, it will leave you cold. Enter PrimaLoft® Gold Insulation Down Blend. It blends 70% water-repellent goose down with 30% superfine, hydrophobic PrimaLoft® fibers. The result is a hybrid insulation that performs better than 100% down does on its own: It’s as warm as 750 fillpower goose down, absorbs water ten times slower than 100% down, dries four times faster than 100% down, and has the ability to retain 95% of its warmth even when wet.