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.

Puddle Buckley Round - A SwimRun Adventure
Puddle Buckley Round - A SwimRun Adventure
Sarah Kelly is the fastest female to complete the Puddle Buckley Round. An adventure challenge fueled by grit, endurance and determination through Wales’ wildest peaks.
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3 people are chest deep in the water all wearing zone3 wetsuits, swim caps and goggles, floating in a line
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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a photo of the iconic Main-Donau- Canal at Challenge Roth, with crowds of people gathered at the swim exit of the triathlon. zone3 signs line the exit.
Challenge Roth Triathlon - A Bucketlist Race
Challenge Roth isn’t just another race. It’s THE race. As the official swim sponsor, Zone3 were right at the heart of the action, with ambassadors racing the big event.
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alex lambert is running down the finish line at the Lakesman triathlon, he is wearing a trisuit with sponsors logos on it and sunglasses, people with pompomps are cheering him on
Racing For My Triathlon Pro Licence
Ever wondered how to become a Pro Triathlete? Zone3 Ambassador Alex Lambert is on his journey to getting his Professional Licence, he shares his Lakesman Race Report and top tips...
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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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Indi is swimming with her dog Pepper
Swimming Across Every Bay in Guernsey - Diary of a Sea Swimmer
Indi, Bobby G, and their water-loving dog, Pepper swim in the sea every day and are now swimming across every bay in the beautiful island of Guernsey.
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a group of people are at the swim start facing the water all with green swim caps on.
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
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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two triathletes have their back to the camera walking with their bikes, they are wearing colourful zone3 trisuits and helmets
Tips to Avoid Plateaus in Triathlon Training
Avoid training plateaus with expert triathlon tips. Learn how to periodise, recover, and adapt to keep progressing at every level.
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Harry Palmer professional triathlete wearing the vanquish x wetsuit , orange swim cap and volare goggles
Athlete approved - What Triathlon Kit Are the Pros wearing
What are the pros wearing to stay ahead of the pack? Here's a look at the high-performance triathlon kit that fuels podium finishes and personal bests.
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someone is swimming in a lake, breathing to one side whilst doing frontcrawl they are wearing the aspire wetsuit and orange swim cap and orange goggles
The Evolution of the Aspire Wetsuit - Pioneering Innovation
As the first wetsuit ever created by Zone3, the Aspire Wetsuit is rooted in performance. The 2025 edition is packed with features that boost performance, support endurance, and keep triathletes...
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two women who are part of the triathlon group '10Ironwomen are running into the water at the start of an Ironman race - they are holding hands above their heads
10IronWomen: From Zero to the Ironman World Championships
10IronWomen is a community dedicated to increasing womens participation in triathlons. Follow their journey from zero to world championships.
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