The O’Neill Thermo-X Long Sleeve Crew Wetsuit Top delivers lightweight warmth, comfort, and flexibility for surfing, swimming, and other water activities. Designed with quick-drying Thermo-X insulation, this long sleeve wetsuit top helps retain body heat while allowing unrestricted movement. Perfect for layering under a wetsuit or wearing on its own in cooler water, it’s a reliable choice for water sports enthusiasts.