Item Will Be Shipping April 20th - May 31st. US unisex sizing. Bio based foam and recycled circular materials. 3X times lighter than any common EVA. ISCC PLUS sustainably certified factory. EN ISO 20347 non slip certification. ASTM F2913 non slip certification. Superior Arch Support + Ergonomic design. UV+ Water-resistant and washable. Antibacterial closed-cell structure. ZERO Water waste in manufacturing. Engineered in Italy. Place an Order, We 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.