Material: Made from durable, UV-resistant polycarbonate or high-impact plastic that resists scratches and heavy impacts.Visibility: Offers a 360-degree underwater view, making it ideal for viewing marine life, coral reefs, and lakes.Capacity: Most standard tandem models support up to 400–440 lbs (200 kg) and comfortably seat two adults.Design: Usually equipped with a lightweight aluminum or anodized frame, dual flotation bladders, and a retractable skeg system for better tracking. [1] ( ), [2] ( ), [3] (