From inception James Cameron viewed Aliens as 'Newt's tale', the character

is in many ways the pivotal human focus of the whole film. 

Rebecca 'Newt' Jorden is a colonist living with her family on the Hadley's

Hope settlement on LV-426 and the sole survivor of the Xenomorph infestation

on the colony. She was discovered hiding in a

ventilation system by the USCMC team which was dispatched to Acheron.

This is the most complete example of the costume known to exist.