weight-saving
Noun
Meaning
weight-saving (uncountable)
An intentional reduction in the weight of an object.
Examples
I-Suit The I-Suit is a space suit prototype also constructed by ILC Dover, which incorporates several design improvements over the EMU, including a weight-saving soft upper torso.
Every possible weight-saving measure was incorporated into the design.
The large neck was filled with an extensive system of weight-saving air sacs.