This is the Henderson 5/3mm Aqualock Quikdry Hood With Bib Features: 5/3mm Nylon-2 Neoprene Material Revolutionary Wet Suit System Design Hood Interlock&';s with Aqua Lock Suits Silicone O-Ring Neck Seals Seams: Double Glued and Blind Stitched Inside and Out Waterproof Aqua Lock Liquid Tape Barrier Revolutionary New One-Way Flow Vent Purge Valve Valve Vents Regulator Exhaust from Hood- Keeps Water Out Aquasilk Laminate Exterior Anatomical Design Henderson&';s New Quick-Dry interior: Revolutionary Hydrophobic Lining Significantly Accelerate Speed of Drying Dries in Just a Few Minutes Not Hours Super Soft & Adds Luxurious Feel to Interior of Wetsuit Limits Water Entry & Movement Thru-Out Wetsuit Keeping You Warmer Longer Enhanced 250% Stretch 7mm Neoprene Rubber Designed as part of the Aqua Lock System this 7/5mm Aqua Lock Quick-Dry Hood utilize the same construction techniques employed by all Aqua Lock Wetsuits. Every seam on the hoods are first double glued and blind stitched inside and out. Then the outer seam is coated with a special waterproof Aqua Lock liquid tape barrier which seals the seam from water entry and helps protect the stitching from damage and unraveling. The interior of the Aqua Lock hood is lined with Henderson&';s new Quick-Dry interior.