Classic slip-on shoes with practical stretch inserts for a quick on and off, a crocodile pattern at the heel and a breathable insole that ensure an optimal foot climate, ideal for a smart or casual look. Brand: Rieker Upper: Leather Lining: Synthetic Insole: Leather Sole: Synthetic. Smart yet casual, the Rieker Colorado men's slip on shoes have smooth leather uppers, perfect for everyday wear. Two elasticated gussets sit either side of the shoe, making it easily accessible for everyday whilst also molding to your foot for a perfect fit. Rieker footwear is designed for comfort and durability, but we cannot guarantee waterproof properties unless expressly stated. Slip into effortless style with these slip-on loafers. Two subtle elasticated vents create easy application and removal, whilst maintaining a streamlined and classic silhouette. A subtle toe-cap and heel panel adds dimensional detail, whilst the gripped sole adds traction underfoot.