Finally you can see a fair video that compare the fabric between the URSA straps and the Viviana straps.
As you can see the fabric is not the same and I think that is great to have a slim and breathable strap that won’t let the liquid to get into the TX pouch rapidly as the URSA seems to do (in just 1 minute...)
Great quality and innovation for Viviana straps. Made in Italy quality seems to be one step beyond once again.
Best regards