You’re gonna want the Under Armour Storm ColdGear Skysweeper Wader Pants under your waders. Armour® Fleece is amazingly light & incredibly warm. They also added features that work to make your time in the blind easier—like built-in stirrups & even a working fly—so you’ll be more comfortable hours in. These pants utilize most of the best features that Under Armour has to offer such as ColdGear and UA Storm. ColdGear utilizes thermo-conductive linings on the inside of the fabric that holds and absorbs warmth which keeps you warmer longer and when using waders in a below freezing temperatures river, your going to want every degree that you can have. UA Storm is a water repellancy that allows water to bead off of the fabric while at the same time giving you the breathability without the bulk.