i have got 16 pairs of evisu jeans and 4 are fake. the reaon i know this is

•  the quality of the denim
• the stiching most evsiu have two tone stitching
• inside of the leg at the bottom should be red and white stichting
• inside of the jeans should have a label saying 'japon'
• back leather badge shouldnt fade in wash
• take a white damp cloth and rub against jeans and colour shoudlnt fade
• buttons only no zip up what so ever
• leather badge should not be to dark and not be to shiny
• obviously price if your paying 40 for jeans which are 200 in shops then u need to  question
• if you do buy jeans online try and get seller to send pics of inside of jeans,bottom of jeans of stiching,outside stiching, and leather bagde aswell

hope you find this usefull