Toiletry bags are very convenient when travelling. If you prefer black bags, then this should you just fine.
From Amazon
Fjallraven 25863-550 Kånken Gear Pocket Wallets Unisex Black Size One Size
Trekkinn
Fjällräven Kånken Pocket Black
OnBuy
Fjallraven Unisex's Kånken Gear Pocket Sports Backpack, Black, One Size