The Immersion Research X-Jacket is a premier 4 season dry top. Features ultra-sonic welded seams, waterproof/breathable Entrant(r) 3 layer shell fabric, lightweight waterproof/breathable inner tunnel, latex neck with protective over-gasket, hook and loop closures over latex wrist gaskets, articulated elbow patches, adjustable neoprene waistband. Seam taped throughout.