Made to last, this diving belt will perform even in the most extreme scenarios.
DESCRIPTION
The ocean’s salt and demanding conditions require equipment that will keep you going under any circumstances. Our 5mm diving belt’s got you covered. The combination of high-end aerospace-grade silicone with a classic, quick-release, high-grade stainless steel Marseillaise buckle ensure that it will stay in its place, hold a heavy load, not rip apart and deliver outstanding performance across any terrain, for all freediving disciplines. Progressive, functional and streamlined, it is ready to become an organic extension of your body.
CLEANING
We recommend cleaning your belt with tap water after each use and let it completely dry before storage.
LEAD TIME
The 5mm belt is dispatched within 48 hours during working days.
TECHNICAL DETAILS
Length: 1.50 m Width: 49 mm Thickness: 5.0 mm Max. Elongation (break point): 570% Tensile strength: 11.4 N/mm² Strength at Break: 355 N/cm Specific weight: 1.16 Working Temperature Range: -70°C to +200°C Available colors: White, Smoke Grey, Blue, Red
Throughout the years, some of the world’s deepest freedivers have used Alchemy fins to set countless World and National records. Here’s what they had to say about us.
“Alchemy blades are the same as samurai blades. A beautiful tool to which we owe our lives. Let's travel to the deep sea, to the world's oceans, and to dolphins and whales everywhere.”
“The combination of performance, comfort, efficiency, durability, and style in Alchemy fins is unmatched, and I am honored to recommend them to my students and team partners.”
“We thank Alchemy for gearing us up so that we can have these moments in the water with the sharks, and help protect them and the people of our islands.”
“In my opinion, Alchemy fins are simply the best fins you can find right now in the market. I've used them for many years in several international competitions, always with great results. The responsiveness of the blade material is phenomenal and you can use them for any underwater activity. ”
“I think I was one of the very first freedivers using Alchemy. In fact I got my first pair in 2011 when the company just started. 12 years later I'm still a fan, I use Alchemy both for working and training and last year they brought me to 92 meters at the end of my deep diving season.”
“I’ve been using the Alchemy V330 Pro short bifins for almost four years now, they are the best short carbon fins I have ever had! The power-to-size ratio and portability of these fins are top-notch. They also fit perfectly in my luggage and are very easy to travel with.”
“Alchemy's carbon stands in a category of its own. As a former engineer, I enjoy the craftsmanship and quality they put into their products. Trusting your fins at great depths and in challenging spearfishing environments is essential. They are your life support. I recommend these fins to anyone that needs a product for performance, comfort and longevity.”
“A good set of fins won’t feel like you are wearing fins at all. My Alchemy fins feel like a natural extension of my dive. Light and smooth, yet sharp and powerful.”
“As someone who's had the luxury of trying dozens of freediving fins, I can say with confidence that the V3-30's are by far the best fins I've ever used.”
“Alchemy fins design and manufacture the highest-quality fins in the world. I’ve been kicking the S model fins for over 2 years. This model is the perfect tool to get me down to the deep reefs I like to hunt and back up in the most efficient way possible.”
“I need to trust my fins the same way I’d trust a dive partner to have my back. They need not to break at depth or wear me out after an 8-hour competition. Whether I’m performing fieldwork in marine biology or shore diving for pelagics, I’m running my Alchemy’s.”
This is hands down the most comfortable weight belt I’ve ever worn. It stays perfectly in place during deep dives and doesn’t pinch or shift. The silicone material feels secure without being too stiff. Highly recommend it.
ELLINOR ANDERSSON
Sweden
Verified Buyer
15/09/2024
The grip is excellent even in cold water.
AHMED ZIYAAN
Maldives
Verified Buyer
09/05/2025
I used other belts before but this one feels more secure and easy to ajust. Will buy again for my students.
SOFIA RAMÍREZ
Mexico
Verified Buyer
26/04/2020
Muy bueno. I dive with it almost every week and never had a problem. Better than rubber belts I used before.
JACK HARRISON
United Kingdom
Verified Buyer
18/03/2023
One of my favourite pieces of kit.
How to calculate weights correctly for freediving & spearfishing.
Our products are made with the highest quality materials and craftsmanship. Alchemy fins purchased from an authorized retailer are fully warranted against defects in materials and workmanship for 5 years. See terms & conditions.
Complete The Set
Reforest the World
We'll plant a tree for every product we sell via our web shop. A real tree, in a real planting project, in Madagascar.
Sustainability
Do you want to learn more about our commitment to setting the highest standards of sustainability in freediving?
Quality
Find out why we are commited to producing the best carbon fins in the world.