These toys are referred to as both Twistables and Twistoys, depending on which packaging was used. Twistables are basically rubber wire-frame figures which can be bent into different poses. The clothing is made of some sort of synthetic fabric. Manufactured by Louis Marx & Co. Hong Kong.
So far, there are three different packagings I know of. Style 1 is a bag style. Style 2 is a box, and Style 3 has a generic "Twistoy" and does not specify the character inside.