The super high performance O'Neill Hyperfreak 1.5MM Long Sleeve Crew Top is a waterman's dream. The gooey-tastic Ultraflex DS neoprene construction won't hinder your movement in the least, all while keeping you warm where it counts and cutting down the windchill and UV rays. O'Neill equipped their Hyperfreak L/S Crew Tops with an external key pocket for your tiny valuables, a single Superseal neck for watertightness, and overall Lumbar Seamless Design for a great fit.