The Thermal Helix is lined with a mid-weight zirconium jersey, chosen because it dries quickly, minimises weight and is flexible.
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