The Thermal Helix is lined with a mid-weight zirconium jersey, chosen because it dries quickly, minimises weight and is flexible.
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The suit was tried by professional triathlete Sara McLarty at last year’s Escape From Alcatraz Triathlon where the swim is held in the chilly waters of San Francisco Bay.
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Sara said: “The Thermal Helix made a huge difference in the temperature of my core and extremities while swimming in water below 55 degrees [12 degrees Celsius]. Just like the other Helix models, it maintained it’s flexibility, comfortable fit, and buoyancy in all the right places.”
“We analysed what the dive and surf industries do for cold-water adventures and we pushed our manufacturing team to establish new ways to glue, stitch and tape,” said Mike Orton, blueseventy’s Brand and Product Manager
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The Thermal Helix is available now at select blueseventy retailers and blueseventy.co.uk.
Look out for a review in an upcoming issue of 220 Triathlon magazine
Read a review of blueseventy’s Helix wetsuit here
Find more reviews of the latest swim gear here