High quality, sustainable wetsuit for the coldest days of the year. The Furnace 5/4 Chest Zip by Billabong is made for surfers who value warmth, freedom of movement and a low ecological footprint.Eco constructionThe wetsuit is made from Airlite Recycler neoprene on the outside, a very flexible, perforated jersey made from 100 % recycled materials. The neoprene itself is a Smart Foam, made from upcycled car tyres and neoprene scraps to combine the best heat retention and a slight stretch.Inside, you'll find a Graphene Recycler+ lining made from 100 % recycled graphene fibres throughout the wetsuit to keep you warm for a long time.Wetsuit constructionThe offset zipper is easy to operate and the Superflex neo tape inside increases durability.In addition, a non-toxic, water-based Aqua Alpha adhesive has been used throughout the wetsuit.Plenty of stretch for your freedom of movement, plenty of warmth for the coldest days of the year and a focus on sustainability: Furnace.