Swift? Gumy?

Please ladies and gents please tell me if swift is a thing of the past and what is this Gumy leather from hermes? Is this the same as swift? It is more or less than clemence or togo? What are your thoughts.. They would be greatly appreciated..

Thanks
1fashionaddict!:wondering
 
Thanks.. A girlfirend and I asked a kind lady at lunch today about her birkin and we think that she said that it was gummy or gumy.. Silly us must have been a misunderstanding.. It looked like swift.. either way thanks a bunch!
 
In regards to your first question and as a little tribute of my own to swift it is a grand Hermes leather I own my black swift, and it is my best and most faithful bag !!!!!!