Women’s flats go well with almost every kind of formal and casual outfit, and they're the best alternative to heels. Propet is an e-commerce brand that has also emerged as a footwear wholesaler in the US. The brand’s product ranges are sandals, boots, slippers, socks, etc. The brand even offers diabetic-approved shoes. Shades of gray include cool gray, warm gray, dark, light, slate gray, and blue-gray.