Combat EVA Suit
A regular space military suit, which has several variations, from engineering to frontal assault.
Female version and male version share the same design, however the earlier is relatively smaller.
The case thing they are carrying is an all-in-one maintenance box that recharges the battery, replenishes oxygen and fuel.
This case is based on the ventilatory devices that real life astronauts carry to the boarding deck.
The orange color is a reference to early space suit designs.