Thermaswim Adult Swim Top Unisex Thermal Base Layer TopThis thermal, long sleeved top has been designed to be worn in water to keep you warm and cosy during swimming sessions or outdoor water activity. The supersoft, brushed fleece inner and four way stretchy fabric, means this top is ultra comfortable and it is close fitting to prevent any extra drag when worn in water. It is ideal to be worn as a base layer under wetsuits for water sports, but can also be worn under regular clothing to keep you warm in