There's a range of adult sizes from 36/37 to 48/49 (that's around UK size 3 to ~13), although the Princess Peach ones only go up to 42/43 (~UK 8). There are also Kids and Toddlers sizes for the Super Mario ones, although they're not available in any size until 17th September. All adult sizes will set you back £69.99, except for the Peach ones which, curiously, are £79.99. They're limited to one per customer at the time of writing, suggesting limited supply and/or that they're expecting enormous interest. Jim, our resident Crocs'pert at NL Towers, describes the Bowser ones as "snazzy", but even as someone lacking a large Jibbitz collection, those Bowser ones do look fantastic.