US Mens Sizing (True to Size). Ultra light weight 3X times lighter than traditional shoes. Antibacterial closed cell structure. Made of 51% Recycled sustainable foam material. Water-friendly and UV proof Vegan. Ventilation on medial side for breathability. Easy to clean and quick to dry. Strap for secure fit and comfort. Durable construction for indoor or outdoor use. Custom designed ergonomic footbed. Made In Italy in our solar powered renewable energy factories. 100% made entirely of XL Extralight Sustainable+ proprietary foam material. Recycled and biodegradable packaging. Place an Order, Plant a Tree.we are proud to announce that we will be doing our part to reduce environmental impact and offset carbon emissions for your order by having trees planted to eliminate all CO2 generated by the package shipment.