When those mid-winter high pressure fronts park over the coast and a steady offshore wind picks up, grab thePatagonia R4 Back-Zip Full Wetsuit and paddle out. Designed for frigid water (38-49 degrees), The R4® comes equipped with a merino wool-lined torso and thigh section, and the micro-grid lining in the arms affords generous flex. With triple glued seams and internal taping at high stress areas, you’ll be sitting pretty in the most arctic of conditions.