The waist band portion of this carrier is made of thinner fabric than many other carriers, so it may be less ergonomic around the waist than some others listed here. (abckidsinc.com)
They can be easily seen under tops if you're wearing something with thin fabric. (amazon.co.uk)
I believe that beige colour dress will look great in thin fabrics like silk and chiffon which can be great choice for work or night out. (jenniferkaya.com)