Iconic revolutionary men's sneaker boot with an ultra-breathable, waterproof, flexible, light, cushioned and durable design and a strong grip.The best of Geox research placed at your service for a blissful sensation of well-being. Designed to keep you feeling good whatever the adventure, the Nebula 4x4 ABX sneaker boot is perfect for outdoor pursuits even when the weather turns cold and wet. A winning combination of technology and innovation, this modern pristine-looking sneaker boot has been crafted in tumbled leather and nubuck in versatile navy-blue palette that makes it easy to style. With elasticated lace stays, it offers a comfortable adjustable fit.Waterproof with an upper enhanced with Geox Amphibiox technology and excellent thermal insulation properties for an outstanding performance, it features three-dimensional inserts on the tread, ensuring grip and durability. The light, ergonomic EVA outsole delivers cushioning and flexibility, while the 3D mesh mounting footbed maximises the light, breathable and cushioned feel. Crafted from a special fabric with spacers, the interior lining allows air to circulate, creating an ideal micro-climate to keep feet constantly dry.Amphibiox™ features advanced waterproof technology from the world of professional outdoor wear, hidden in the form of a fashionable shoe. Be ready for everything the city throws at you, with Amphibiox™, the perfect footwear choice for any condition. Amphibiox™ is top of the range in terms of Geox’s waterproof products. It stands out from other waterproof shoes by using Geox’s pioneering waterproof and breathable sole, pairing it with a series of innovative technologies (including some of Geox’s own patents) on the upper, to achieve durable water resistance and breathability. The special Amphibiox™ membrane protects against rain, mud and snow, leaving your foot completely dry. The high breathability helps regulate the natural internal temperature, removing moisture from the shoe and guaranteeing freshness or warmth depending on the external temperature.