Manual measurement, due to different individual techniques, 1-3cm error is normal, not quality problem. Note:The size in our store is for Asian, it is 1~2 size smaller than Europe/US size, we suggest to purchase 1-2 biggersize than usual. Welcome to my store!!!Enjoy your shopping!!! Condition: 100% Brand New Features: 100% Brand New with tag. package in cluding:1 t-shirt !kimuji ii