The Ronhill Tech Gore-Tex Mecurial men’s waterproof running jacket is your adaptable, lightweight protection to transform bad weather into feel-good adventures. The Ronhill Tech Gore-Tex Mecurial men’s waterproof running jacket is your adaptable, lightweight protection to transform bad weather into feel-good adventures. From stormy winds to rain, you get the coverage you need to conquer mountainous summits or shift the pace up a gear without distractions.