Destined to be one of your most powerful weapons against late-season wind and cold, the Duck Oven retains massive amounts of heat while promoting maximum freedom of movement when layered beneath waders or bibs. It packs a one-two punch of warmth: WINDSTOPPER(R) by GORE-TEX LABS shielding you from frigid gusts and Primaloft(R) Gold Insulation with Cross Core(TM) technology locking in heat at the torso and sleeves. The compression-resistant fleece lower third is streamlined to tuck easily under waders or bibs.