blueseventy Hydra Vision Goggles for Open Water/Triathlon Review BitterGnoll March 22, 2018 July 24, 2018 No Comments on blueseventy Hydra Vision Goggles for Open Water/Triathlon Review Blueseventy’s premium open water goggle, the Hydra Vision is built with a wide, curved lens to improve visibility, and a low profile frame to improve hydro-dynamics. It was the winner of Triathlete Magazine’s Editor’s Choice for Best Goggle.