Features: Made of 3mm premium neoprene +nylon fabric, eco-friendly and good heat preservation. Exquisite stitching can reduce the irritation and ensure your maximum comfort and durability. Inner rubber layer can effectively lessen water penetrating, keep you warm. Excellent UPF50+ sun protection, provides effective protection against UV rays. Protect your face and neck from getting hurt by sharp objects undersea. Gas flow vent allows the bubbles to escape through the top of the wetsuit hood. M/L/XL for optional, high stretch and excellent recovery, perfect fit different people. Great accessory for diving, surfing, sailing, snorkeling and other water sports. Note: Measuring tolerance 1cm is allowed due to elastic material. Specifications: Material: Neoprene+Nylon Size: M/L/XL (optional) Color: Black Package Size: 35 * 35 * 1cm / 13.8 * 13.8 * 0.4in Package Weight: 150g / 5.3oz Package List: 1 * Diving Hat