Engineered Warmth Beneath Your Latex HoodThe DuoTherm II 300 Hood Liner is a high-performance thermal hood liner for diving, specifically designed to fit comfortably under latex drysuit hoods. Trusted by public safety divers and recreational explorers alike, this scuba hood liner offers enhanced warmth and moisture control without bulk. Its snug, stretchy fit makes it ideal for cold water environments between 45 to 60 Degree F, ensuring you stay protected in a wide range of conditions.Active Wicking Technology for Dry ComfortThis upgraded version features Active Wicking Technology (AWT) to manage moisture effectively inside your drysuit. The inner surface pulls sweat and condensation away from your skin while the exterior repels incidental water contact, making it ideal for long-duration dives or rescue missions. Whether you're layering up for warmth or managing your core temperature during surface intervals, this hood layer keeps you comfortable throughout.Flexible Fit with All-Way Stretch FleeceMade from soft, all-way stretch fleece, it allows a secure fit under any latex diving hood, while offering freedom of movement and breathable performance. A built-in chin strap adds extra stability, and the single-size construction ensures adaptability for most divers. Use this lightweight hood liner for drysuit diving to add an essential layer of comfort without compromising gear compatibility.