Ultimate Guard 9-Pocket ZipFolio XenoSkin Blue

Having used this product to store my cards, I trust its ability to protect them. Its thick exterior layer allows for it to be carried without the concern that the cards could be bent through too much forced being exerted on the surface, and a secure weave surrounding the cards supports them with enough pressure to reduce their movement and their ability to fall out.

However, I would recommend using this portfolio along with card sleeves to allow for additional protection if the cards do fall out. This will also help avoid any cards being bent if they are placed along the spine of the portfolio where the pages bend (although I have not experienced any issues yet).