SECRIDMen's Modern, Multi-Coloured, Taglia Unica

How does the 2 year warranty work?

can it be carrier on rear pocket? will it resist the weight of an adult (~80kg /182 pounds)?

Does this come with the certificate and id code to register the product?

Does this wallet hold safely metal credit cards like Chase Saphire? Will the card drop out of place if it is upside down?