The Mares 2nd Skin 1.5mm Shorty wetsuit is a great option for snorkelling in warmer waters, or can be used as an additional layer with a thicker wetsuit in colder waters. 

It is made from metabolite which has reflective and heat retention properties and has a built in 0.5mm hood. Comfortable and flexible to wear while remaining durable, the 2nd Skin Shorty is a great suit.