Hey Mike,
Thanks for taking the time to leave such a great review! We're so happy to hear our Core Compression Long Sleeve is delivering that high quality you're experiencing for your grappling training - it's awesome that it's holding up so well after a month of heavy use! We totally understand the concern about seam durability when it comes to intense training like Gi and No Gi jujitsu, and it's great to know the construction is really standing up to the challenge. That durability and quality performance is exactly what we aim for with our Core range, and the fact that you're planning to add more to your rotation says it all! Thanks for choosing 2XU!
Thanks,
Cem
2XU Customer Support