This product isn't non slip like in the picture that they advertise, it's regular boston. Returned.Will order these again! The fit was perfect and as always Birks are the most comfortable shoes ever! Will order again.ok this is itboston, with leather not suede. lasts forever there you go write that down. blue is a good color.Love itI have been wearing Birkenstocks for over twenty years now. When I first got a pair my bairns christend them ET as they resembled ET from the film. there are no shoes more comfortable in a hot day as ETsPerfect fit, excellent material. Price of these were good but wish it could have been lower!! They are, however, Birkenstock.This is my second pair of these. They are honestly so comfortable that I won't consider wearing anything else around the house.So comfortable and well made.I was sent a narrow fit instead of a standard. Completely useless to me