As the name says it ND Armors are way too heavy, when comparing them to the other pieces that are all 60 weight, while their Donation contrapart is just 10 weight lighter, but when someone pass an eye on Armors you will see a pretty big amount of 280, and when comparing it to F Armors 100 weight it is indeed pretty heavy, so my suggestion for a new weight would be:
110 - 130 Weight.
As that way u will be able to carry 5 more ygg berries or 11 seeds, it might seem like a small change althought there are people that use more than 5 armors, meaning that the people go tend to focus more in Pvp will get 25+ berries or 55+ seeds that's pretty usefull in several occasions.