This is a great question!
We've introduced constant improvements into our products since 2011. Quite simply, the 3.0 version is a newer and improved version when compared with the 2.0.
The material type and thickness is the same, and they're just as effective.
However, the 3.0 has a few features the 2.0 style do not have, namely;
- Comfort panels on the inner thigh - to remove fabric friction
- Stronger seams that are flat lock
- Better finishing and stitching