Nemean Armor Implants increase the subject's Ballistic and Hard DTs by 5. Stage II Nemean Armor Implants increase the subject's Ballistic and Hard DTs by 10. Stage 1, adds a permanent 10 lbs. of weight. Stage 2, adds a permanent 15 lbs. of weight.
The Nemeanimplant, also known as Sub-Dermal Armor, is a recurring element in the Fallout series which increases the player character's overall resistance to damage.
The following is based on Van Buren and has not been confirmed by canon sources.
In the canceled Fallout title Van Buren, a series of unfinished Enclave/Poseidon projects were planned to appear, one of them being the Nemean implants. These were available for science-oriented characters to complete.