Do all genuine leather shoes say "leather" on them ?

I bought a pair of Reebok all white leather-look shoes, on Ebay. Under the tongue, on the box and elsewhere you can’t find the word, “leather” or “manmade.” They smell like vinyl but look like leather. It doesn’t say the composition under the tongue and they’re not very soft.
What are they made of? Has Reebok gone to vinyl shoes?