From HEYDUDE, the Men's Wally Eco Funk Washable Slip-Ons feature:

• Bi-component stretch-knit upper.
• Round toe silhouette.
• Slip-on style.
• Stretch-cotton lining reduces sweat and odor.
• Removable cushioned memory foam insole for enhanced comfort.
• UltraLIGHT outsole.
• Machine washable (Cold) Air dry, Remove insoles