Womens Ferrosi Convertible Pants 10 - Pewter. Outdoor Research Athlete Ambassadors and employees invariably turn to the soft shell Ferrosi Shorts⢠and pants when the weather turns warmer. That's why we're introducing the stretchy, breathable Ferrosi Convertible Pantsâ¢. These two-in-one bottoms feature zip-off lower legs, making them ideal for hiking and backpacking; They're never too hot but always block shiver-inducing wind and light rain on