This is a compact sail used for canoes and kayaks. It can be set up easily and folded quickly. It helps to catch the wind and increase the power. A great tool to take advantage of wind power to assist you in your adventure.   Features: Made of eco-friendly cloth which is strong and durable.  Clear window enables you to view things behind sail.  Easy to set up and fold into a compact size quickly, convenient to take with.  Effectively weaken ultraviolet radiation to protect you from hot sun.  Comes with a storage bag for convenient carrying.  Suitable for kayaks, canoes, inflatables, boats, etc.   Specifications: Material: Polyester + PVC.  Color: Red / Green / Orange / Blue (optional).  Deployed Diameter: 108cm / 42.52in;  Folded Diameter: 40 cm / 15.7 in;  Packing Size: 40 * 40 * 2 cm / 15.7 * 15.7 * 0.8 in;  Packing Weight: 350 g / 0.8 oz;     Package List:  1 * Sail;  1 * Storage Bag;   Notes: Please allow 1 - 2cm (0.4 - 0.8") differences due to manual measurement, thanks.  The listing just includes a kayak sail and a storage bag only, other accessories are Not included.