Inside Zone3

Inside Zone3 explores the world around swim, triathlon and open water — from the athletes and environments that inspire us, to the thinking behind the products we create. Considered, practical and shaped by experience, it’s a space for stories that reflect how we approach performance, progression and life in the water.

a triathlon transition showing all bikes racked on racks and lots of kit each side, all on a red carpet
How To Manage Triathlon Transitions T1 & T2 For Faster Race Times
What T1 and T2 are, how to set up your triathlon transition area, the kit that makes both faster & the mistakes to avoid. From wetsuit removal to aero race...
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a man is swimming in the pool wearing buoyancy shorts the photo is taken from under the water with the person swimming above
Improve Your Triathlon Swim Technique Using Buoyancy Shorts
Buoyancy shorts lift your hips and legs into a flatter swim position, training your wetsuit feel in the pool. From Zone3, inventors of the category since 2007.
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zone3 streamline sleeveless swimskin
Swimming in Skins vs. Wetsuits vs. Swimskins: What Triathletes Need to Know
Skins, wetsuit or swimskin? What to wear for wetsuit-legal and non-wetsuit triathlon swims, the temperature rules that decide, and how each option affects your swim.
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Zone3 sponsors ATW events
Half Ironman (70.3) Training Plan: How to prepare for a middle distance triathlon
A middle-distance triathlon, also called a 70.3 or half Ironman, covers a 1.9km swim, a 90km bike and a 21.1km run. It sits between the Olympic distance and the full...
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a man is swimming in a open air pool with hand paddles for training
Building Endurance for a Triathlon Swim
A strong swim makes you more competitive in the water and saves you energy for your bike and run so building your swim endurance should not be overlooked.
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casper stornes sitting on the side of a swimming pool wearing jammers, adjusting swim cap
Top Triathlon Swim Tips and Drills
Top triathlon swim tips and drills to incorporate into your trainiing Below you will find the part of the swim technique to focus on, why it is important and which...
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a man is swimming in a zone3 wetsuit, doing front crawl, the photo is taken from beneath the water
The Science of Speed: Hydrodynamics, Energy Efficiency, and Triathlon Wetsuits
Triathlon swimming is often the most technically demanding parts of race day. Open water conditions, race nerves, and the need to conserve energy for the bike and run make the...
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a flag with the Ironman Triathlon logo and words world championship on it, against a backdrop of ocean
Ten Years, One Target: The Journey to Achieving My Ironman World Championship Dream
How to qualify for the Ironman World Championship: a journey built on consistent training, setbacks, race strategy, resilience, and unwavering self-belief.
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a man and a woman are facing the camera, both stood next to the start line the swim start of a triathlon wearing their wetsuits and brigh colpured swim caps
Strength Training for Triathletes and Swimmers - Build Power and Prevent Injuries
Discover how strength training for triathletes boosts performance, prevents injury and improves swim, bike, and run efficiency with simple, proven exercises.
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a group of people are swimming in the open water event, with  a buoy in the water to turn around
How to Train for Triathlon Open Water Swims in UK Lakes and Seas
Triathlon and Open water swimming are having a big moment in UK. With huge events like Ironman Leeds, the London T100, the Great North Swim and Swim Serpentine drawing record...
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Anti fog goggles blog hero ZONE3 venator-x
A Complete Guide to Choosing the Best Anti Fog Swimming Goggles
Choosing the best pair of anti fog swimming goggles can make a significant difference in your swimming experience. Whether you're training for a triathlon, swimming laps for fitness, or just...
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Zayd (swimming mantis coach) is surrounded by swimmers wearing wetsuits, all facing the camera. they are all in the sea.
Open Water Swim Safety Tips For Newbies and Seasoned Swimmers
Open Water Swim Safety Tips for newbies can make all the difference in helping you feel confident, calm, and in control in lakes and the ocean.
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