this is the large.. my sizes are personal but they were not much off the sizes given by 661 maybe a couple of cm's under // over.. but it depends if you are thin or fat.. the XL is for longer people a must .. although you will get problems fitting the kidney straps cause they recon long peesp are fat too so XL fitted me too but did not "squeeze" my body.. if you are shorter than 180cm and thin get a M i think,. but its all a bit fishing ..