I purchased this new and used it with a cover, so I don't see any stains. However, it was used by a child, so please understand this. I will also include a UNIQLO cover that can be used with a stroller and a baby carrier. This baby carrier features a mesh material for good breathability and shoulder straps with cushioning. - Brand: Ergobaby - Color: Black - Material: Mesh - Features: Shoulder straps with cushioning Thank you for looking.