Hydro Sphere

Product No: 425719


The Hydro Sphere buoy has a spherical shape. It is made in extra sturdy 500D orange PVC. It guarantees excellent visibility in the water and increases the level of safety during freediving excursions. Equipped with flag, nylon D-ring, floating rope and nylon carabiner.

Product Information


The Hydro Sphere buoy is a spherical shaped buoy. It guarantees good visibility for the freediver in the water, also thanks to the flag and its intense orange color. Safety in the water is essential, especially during freediving excursions near possible boaters.
The Hydro Sphere freediving buoy comes in extra durable 500D orange PVC .

The key features of the Hydro Sphere buoy are:
• Buoy with sturdy outer lining
• 500d orange PVC providing great strength, visibility and a smooth surface for ease of movement
• 20 meters of floating line + nylon carabiner
• Nylon D-ring and 18.5cm x 18.5cm sub flag

Complete your freediving equipment with the Mares 7mm, 5mm, 3mm wetsuits or accessories.


Please follow the instructions contained in the manual. You must read and understand all warnings and instructions in their entirety before using our products. Scuba diving is a hazardous activity, which involves a risk of injury to any and all parts of the body. As with all scuba diving equipment, our products are designed to be used by trained, certified divers only.

Delivery & Returns


Online purchases on mares.com are enabled for Italy, France, Spain, Germany, Austria, Netherlands, Luxemburg, Belgium and Finland. Some products from the catalogue are only available to purchase at an authorised Mares Dealer.

Products shipped in Italy are entrusted to Bartolini couriers. Products shipped in other countries are entrusted to DHL couriers.

Delivery times are 3-5 working days.



If you are not satisfied with your order, you can return it quickly and easily.

You can decide to return any products purchased on mares.com within 30 days of delivery. To return items, use the same box they were received in, complete the returns label found here with shipping details and attach it to the box. Remember to insert the delivery number found on page 1 of the delivery documents.


To allow you greater freedom, we have not chosen a courier service with which you need to return the package, you are free to choose your preferred service provider.

Please remember that shipping costs are your responsibility.


You will receive the total refund on the same payment method you used to place your order, within 14 days after your return has reached our warehouse. 


At the moment, we cannot offer exchanges on our products. If you would like a different size, please return the article for a refund and purchase a new size. If you still have any doubts, you can write us an email at shop@mares.com, our Customer Service team will be happy to help.