The tough, feature-packed Brush-Tuff Extreme ATS (Advanced Tracking System) hunting wader provides the ultimate in warm, waterproof protection. It uses heavyweight 5mm fleece lined neoprene with abrasion-resistant, bidirectional Brush Tuff material for the chest and legs, while 1600 G. ThinsulateTM Ultra Insulation lines the boot to keep feet warm in the coldest water. An aggressive ATS outsole system provides traction in wet, muddy conditions.