I ordered some Royal racing storm pants, I’m a 32/34″ waist, ordered a medium, too small, sent them back, ordered a large, too small, got a refund then as XL would’ve been ridiculously long in the leg.
I then went on the DirtyRidesApparel site, followed their guide to sizing for their custom pants, & hey presto, arrived & what a great fit they are, impressed with the quality of them too, strongly recommend, customer service was excellent too, fast responses to any emails sent, hope this helps Crashrash.