Shark Stop
SOS Freedom8 Personal Shark Deterrent
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Shark Stop wetsuits are built to reduce the severity of a bite if one happens. Freedom8 works further out, using a proven electrical deterrent to reduce the chance of a shark closing the distance in the first place. Together, they cover two different layers of protection: keeping sharks at a distance, and reducing injury severity if they don't. We stock Freedom8 as the personal deterrent layer of that approach.
Freedom8 is a non-lethal personal shark deterrent that generates a controlled pulsed electric field designed to encourage sharks to turn away before approaching closely. It's manufactured by Sentinel Ocean Systems (SOS), built on an electronic deterrent technology lineage that has been independently studied for many years.
Designed to deter: Great White Shark, Bull Shark, Tiger Shark.
How it works: Freedom8 creates a strong, controlled pulsed electrical field between its electrodes, delivered through a 2.2m flexible trailing antenna connected to the Freedom8 electronics module. Sharks have a highly sensitive sensory organ called the ampullae of Lorenzini, which detects this field. As a shark moves closer and the field strength increases, the sensory discomfort intensifies, encouraging it to turn away.
Freedom8 is designed for divers, spearfishers, surfers, kayakers, swimmers, and other ocean users who want an additional personal safety measure alongside existing risk awareness — it's intended to be used alongside, not instead of, awareness and other shark safety measures. It does not injure sharks or other marine life, and does not attract sharks.
Features: Science-backed technology — independently tested and peer-reviewed. Non-lethal. Trusted by professionals — used by the Australian and US navies, and commercial divers. Rechargeable lithium battery, lasting up to 5 hours. Operating depth of 50 metres (164 feet). LED battery indicator. Lightweight and compact at 1050 grams.
Built for: Diving, spearfishing, snorkelling, swimming, surfing, paddling, fishing.
Important: Freedom8 is a risk-reduction tool, not a guarantee. Like all shark deterrents, it does not guarantee protection from sharks, and effectiveness may vary depending on conditions, setup, and user behaviour.
Coexistence is Key
Coexistence is Key
The ocean is a wild place, and we believe it belongs to the marine life that calls it home. Our mission isn't to conquer nature, but to facilitate a respectful relationship with it.
Killing sharks will not keep us safe, and the health of our oceans relies on healthy shark populations. By changing people's perceptions of the importance of sharks and how we can coexist with them, rather than dominate them, we aim to bring to light many other issues threatening our sharks.
Personal safety is in our own hands. By equipping you with the right protection and emergency tools, we empower you to 'fear less and enjoy the ocean more’, entering the water with confidence while respecting the balance of the ecosystem.
All of our products are designed to help you enjoy the ocean with peace of mind, and be prepared should a negative interaction such as a shark bite occur.
Warning & Safety
Warning & Safety
Participating in watersports in the vicinity of sharks is an inherently dangerous activity. If a shark is sighted, get to safety as soon and as calmly as possible. Do not stay in the water.
Shark behaviour can be unpredictable and a shark bite can be extremely dangerous.
Even utilising the full range of Shark Stop (or other shark bite mitigation) products, safety can never be guaranteed in a wilderness such as the ocean, or when in the vicinity of wild animals such as sharks.
Participation in ocean activities is at your own risk. Shark Stop provides tools to improve safety outcomes but is not liable in any way for injuries sustained in unpredictable marine environments.
Size Chart
Getting the right fit in your Shark Stop wetsuit is essential for both comfort and protection. Our sizing guide covers chest, waist, hip, and height measurements for all our shark bite-resistant wetsuit models. Not sure between two sizes? Our team offers personalised sizing support — contact us before you buy. Free size exchanges available for Australian customers with a prepaid return label.
INSTRUCTIONS FOR MEASUREMENTS
Please measure in bathers to get the most accurate measurements
Height: This measurement should be taken barefoot. The easiest way to get this measurement is for the customer to stand with their heels against a wall and look straight ahead. Make a small mark utilising a pencil or piece of tape on the wall level with the tallest part of their head then have them step away so you can take the measurement.
ARM LENGTH (Neck to Wrist): Keep arm at side relaxed and measure from the base of the neck to the edge of the shoulder then to the customer’s wrist.
Chest: Have the customer lift their arms. Place tape around the chest/bust at nipple level. Have the customer lower their arms then check that the tape is horizontal front and back before taking the measurement. Measurement is taken relaxed - not with chest expanded.
Waist: This measurement should really be called a “stomach” measurement. Measurement is taken at the largest part of the waist/stomach. The easiest way to do this is find the waist point on the customer’s back and then make sure the tape is horizontal as you measure around the stomach to the front.
Hips: Have the customer stand at 90 degrees to you when taking this measurement. Look for the widest part of the seat (bum) and measure ensuring that the tape is horizontal.
Thigh: This measurement of the upper thigh is taken at crotch level. Ensure that the tape is horizontal and is not over lower buttocks.
LEG LENGTH (Crotch to Ankle): Place a ruler between legs right at crotch level. Have the customer stand up straight with feet shoulder width apart, looking straight ahead. Take measurement from top edge of the ruler as close to the body as possible, down the inside of the leg to the inside ankle knuckle.
