I got an A1 for size. In terms of looks and size, this looks and fits almost exactly like Fuji BJJ Uniform I got on Amazon.
I took a side-by-side picture of the two for comparison.
However, upon closer inspection and especially when wearing it, you start to feel the difference.
You can see how much thinner the JACO gi is looking at it side-by-side, especially around the neck area.
Initially I thought "thinness" of the gi might pose a problem when grappling so I made sure to test out the gi with a lot of grappling. I've bought a cheaper Fuji gi in the past (not the one above) and it ripped after a month so I wanted to make sure this one would hold up. It held up well.
Patches: The patches are placed subtly on the chest and shoulder area and you can tell off the bat that is if of high-quality embroidery that is meant to last. Personally, I like the minimal style of the logo, so I plan on keeping this on my Gi.
Rubber Collar: The rubber collar prevents sweat absorption, great for fighting off bacteria. I noticed it dried very quickly after a hard rolling session. Although I don't sweat too much, I can see this being an extremely beneficial to those who drown their gyms in sweat. It will help with the odor of the gis and having to wash it after every roll.
Arm Length: For me, problems with most gis is that the arm sleeves are always too long or too short after it has been dried. The Fuji gi pictured above was too long ---the sleeve went past my wrist even after washing. However, the JACO gi was a perfect fi with my arms---the sleeves ended up right at wrist level.
Pants Patches: The Jaco Unity logo is on the right thigh and if wanted, can be removed.
Rope Drawstring: This is where the pants shine. The rope drawstring is unique because it’s made of a thick, yet soft cotton drawstring that emulates the ones you’d see on a premium sports sack pack. You can tell Jaco put some effort into these because it’s not the typical ones you see on a Gi and these are built to last.
Belt Loops: There are 3 belt loops on each side, the color matching the stitching of the pants.
Overall Pros and Cons