A good wash bag, also known as dopp kit in the US, is hard to find. It must be off a certain size - convenient enough to house all of your travelling products but small enough to fit in carry-on luggage or a suitcase. Suitable pockets and or dividers are important too, as is a wash bag's style.
Niven & Joshua offer a selection of the finest wash bags, from luxury lifestyle brand WANT Les Essentials de la Vie. Renowned for their attention to details and fine styling - there are choices of leather or canvas. A nylon lining ensures good waterproofing, and any spilt products are easily cleansed.