The Ricoh GR and its successor the GR II (which has wifi), make excellent street and travel photography cameras. They will fit comfortably in your jeans front pocket and can be kept handy in there without a case ready to shoot when a street photo presents itself. Just remove anything from the pocket that might scratch the camera.
The 18.5mm (28mm equivalent) F2.8 lens is ideal for shooting subjects close up and is very sharp giving good image quality.
It is also good as a general travel camera and will take very good landscape photos with its 16.2 MP sensor.
This camera was used on many of our recent photo trips including the trips to Thailand and Japan.