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.

the swim serpentine sign at the event
beginners open water swim openwaterswim
Swim Serpentine 2025
Zone3 were proud partners of Swim Serpentine 2025, which brought thousands to Hyde Park for a day of open water swimming and personal goals.
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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
beginners triathlon
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 triathlon transition showing all bikes racked on racks and lots of kit each side, all on a red carpet
beginners triathlon
How To Manage Triathlon Transitions T1 & T2 For Faster Race Times
Learn how to master triathlon transitions T1 & T2 with expert tips on setup, race-day strategy to save time & how to avoid mistakes for faster, smoother results.
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a group of people are swimming in the open water event, with a buoy in the water to turn around
beginners openwaterswim triathlon
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
Beginners open water swim Triathlon
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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3 people are chest deep in the water all wearing zone3 wetsuits, swim caps and goggles, floating in a line
beginners triathlon
Swimming in Skins vs. Wetsuits vs. Swimskins: What Triathletes Need to Know
The difference between swimming in skins, wetsuit and swimskins in a triathlon. Know what to wear for non-wetsuit legal triathlons.
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Zayd (swimming mantis coach) is surrounded by swimmers wearing wetsuits, all facing the camera. they are all in the sea.
Beginners open water swim Triathlon
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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a group of people are at the swim start facing the water all with green swim caps on.
beginners triathlon
Zone3's Blenheim Palace Triathlon 2025 recap
Zone3 share a roundup of Blenheim Palace Triathlon 2025 - community, kit checks and ambassador racing energy - as official swim partner.
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a pair of orange zone3 goggles with blie tinted lense is being held - the photo is a close up of the goggles
Beginners openwaterswim Triathlon
Your Triathlon and Open Water Swim Event Kit List
Your comprehensive triathlon kit list. Know what to pack for your swim, bike, run, and race-day essentials to boost performance and confidence.
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a man is wearing a zone3 swimskin with swim cap and goggles, he is facing away from camera
beginners triathlon
Top Tips for Your First Triathlon
Discover top tips for your first triathlon! From open water practice to race day nerves, this beginner-friendly guide helps you enjoy the journey.
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a woman in a zone3 swimming costume, cap and goggles is diving into a swimming pool, she is underwater and the camera angle is also under water
Beginners OpenWaterSwim Triathlon
11 Winter Training Tips for Triathletes
Discover 11 essential, practical and motivational winter training tips from our community to stay on track through the colder months.
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a man is running in the water at the beach wearing a ZONE3 swim wetsuit
beginners openwaterswim triathlon
What to Wear Under a Wetsuit for Open Water Swimming
Knowing what to wear under your swim wetsuit is important, it can directly affect your swim performance, comfort, and even warmth.
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