>>79345187I own an Omocat shirt and I haven't even worn it. However, the internet tells me that a standard L size USA tshirt is 30" in length, which is 76.2cm.
The hololive store tells me that the XL is 77cm long, so I assume the XL = USA L. However, Japanese shirts tend to be a bit droopier than foreign ones, for some reason, or so I have read.