Nike shoes are quite small.

The size 35/36 is rather a 35. So if you have 36, the size should take no more. The shoes are made so as the usual rubber sandals. My daughter has size 34 and they fit well, but are not really too big. What my daughter is important is that they do not like their old slippers, on the side from slipping while walking and those sitting here accordingly safely on foot. The stopper of the rubber belt coming through under the sole and are secure there. If you have more body weight, but it can happen that you so flat traipsing the soles, that the plugs start under the sole pressing and hurting. My daughter had often those shoes and has no problems, but also has little body weight.