EUC!!! *Runs small!!! The Fourth Element Thermocline Leggings are a great alternative to traditional neoprene dive leggings. The unique combination of Thermocline technology and ECONYL® nylon fabric is equivalent to a 2mm wetsuit, making it a great alternative to neoprene. They’re hypoallergenic, breathable, and easy to travel with. Their inner fleece layer keeps you warm during tropical dives. They dry quickly--in about an hour-- to keep you comfortable on shore. You won’t need to wear as much lead as you dive either because they're neutrally buoyant. Made with OceanPositive ECONYL® Material ECONYL® is made from 78% recycled nylon from 'ghost' fishing nets. These abandoned fishing nets get caught on reefs and wrecks where they endanger ocean life. ECONYL® is good for the ocean, but it's also great for you. This attractive, high-performance nylon is durable, lightweight and quick-drying. Wear it alone or layer it under a wetsuit. Fourth Element Thermocline Leggings Features: Dive leggings alternative for those allergic to neoprene Lightweight, foldable design that’s travel ready and won’t crease Moisture-wicking and quick-drying with a soft inner fleece layer Designed for diving or surfing in tropical temperatures Machine-washable for easy cleaning 33% ECONYL® Recycled Nylon, 57% Polyester, 10% Elastane