From Starbounder - Starbound Wiki
Silver Greaves are the leg slot part of the Silver Set. They have a chance to be sold by merchants.
In early beta the greaves were craftable, but their crafting recipe was removed from normal gameplay in update Rampaging Koala.
- Perturbed Koala: Added
- Cheerful Giraffe: Reimplemented, Reimplemented, now sold by merchants