Lae。Olukai Lae\'ahi Shoe Sneaker Men\'s Size 9 US / 42 EU Blue Breathable, Lightweight, Supportive, no Socks * Breathable Mesh Construction: Made with durable mesh and water-resistant synthetic accents for breathability and durability. * Lightweight and Supportive: Lightweight midsole with a non-marking Wet Grip Rubber ® outsole for superior traction. * Barefoot-Friendly: Soft microfiber lining perfect for wearing without socks. Crafted with breathable mesh and a cushioned PU footbed, this sneaker ensures lasting comfort. Its slip-on design makes it perfect for effortless transitions, while our signature Drop-In Heel® enhances versatility. The Laeahi features a soft microfiber lining, making it ideal for wearing barefoot.