The Terran Uniform is a multi-layered outfit designed specifically for service in space and in hostile environments. It is comprised of two layers, a base layer that acts as both an environmental suit and a mechanical counterpressure suit in the event of the wearer being exposed to vacuum. The outer layer is a Duty uniform comprised of a jacket and pants, which are designed to be comfortable, durable, and functional, while still making sure the wearers have a modicum of style when wearing one.

the Standard Terran Environmental/Pressure Suit, or STEPS, is a form-fitting, but not quite skin-tight bodysuit which is actually several parts. The main part is the shirt, which is long-sleeved, and contains a lockring around the neck, allowing a helmet to be securely attached.

This lockring is normally collapsed, but, when locked to a helmet, expands into an articulated joint which allows for the full movement of the head. The lockring also contains a small air canister and air filter to allow two hours of breatheable oxygen, in accompanyment with the Magnetic Containment sphere the lockring generates in vacuum or hostile atmospheres if no helmet is present. To use the lockring, one simply pushes on a helmet until it clicks, then pulls it up to accordion out the mechanism allowing for neck and head movement. In order to remove a helmet, the wearer simply pushes the helmet down until the lockring is fully collapsed, and twists the helmet off.

The Second piece is the pants, which include foot coverings, with the final parts being a pair of gloves that give enough counterpressure so that a wearer's hand's aren't damaged, but can also move fairly easily. The whole suit is made from a smart material that makes air-tight bonds to itself but can still be separated by hand. the Material will, upon exposure to vacuum, produce mechanical counterpressure to keep the human body from being damaged by the vacuum.

The Marine and Navy Variants are black, While the Air Force variant is Navy Blue.

Each duty uniform consists of four parts: a Jacket, Pants, Belt, and a pair of boots.

The overall uniform color scheme for the marines is Hunter green with black accents.

• Jacket: The Marine Jacket is a somewhat loose collared jacket with two breast pockets, two front hand pockets, and a large pocket at the small of the back, which can be entered from either side.
• Pants: The Marine pants are made with a relaxed, but not loose, fit, and have two large thigh pockets in addition to the standard pockets near the beltline.
• Belt: The Marine belt is a Utility belt which holds a First Aid Kit, a Sidearm, a Knife, a Small grapple hook and line, an Emergency beacon, and room for extra magazines. It is made out of a black synthetic leather-like material that is very durable.
• Boots: the Marine boots are Sturdily constructed black boots, which zip up the side. They have steel toes, and the sole can be magnetized to allow for walking on metal surfaces when no gravity is present. They are made out of tough synthetic materials and are rated to stop most sidearms, and some larger weapons.

The Overall Air Force Uniform is Navy blue, but has different accents based on a person's job

• Jacket: The Air Force Jacket is styled similarly to the Marine jacket, but it only has the two front hand pockets and one breast pocket, on the right breast.
• Pants: The Air Force Pants come in two varieties: Standard, and Pilot. The standard pants are relaxed fit slacks with only the four standard pockets, while the Pilot pants are more fitted, and have utility pockets on the sides of the calves. The Standard pants are worn when not on Pilot duty, or when off-duty, as they are less cumbersome and more relaxed-fit in nature.
• Belt: The Air Force Belt carries the soldier's sidearm, a miniature tool kit, and a beacon. it is made from a black synthetic leather-like material that is very durable.
• Boots: The Air Force boots are Black, somewhat lightly constructed, and lacking steel-toes. The sole can be magnetized to allow walking on metal surfaces when no gravity is present. They zip up the sides.

The Overall Navy Uniform is Burgundy, but has different accents based on a person's job

• Jacket: The Navy Jacket is styled similarly to the Marine and Air Force jackets, but it only has the two front hand pockets and breast pockets, lacking the Marines' extra pocket at the small of the back.
• Pants: The Navy Pants are a pair of relaxed-fit slacks, which are worn with a crease down the front. Unlike the other two branches, Navy pants only have four pockets near the beltline, and do not include any cargo pockets.
• Belt: The Navy Belt carries the soldier's sidearm, a small datapad, and a collapsible bubble helmet to deal with decompression events. It is made from a black synthetic leather-like material that is very durable.
• Boots: The Navy boots are Black, somewhat lightly constructed, and lacking steel-toes. The sole can be magnetized to allow walking on metal surfaces when no gravity is present. They zip up the sides.

Technicians, when working, tend to wear a protective jumpsuit as opposed to a Duty uniform. Regardless of branch, technicians also seem to prefer wearing the marine style boots for their greater protection. The Technician's jumpsuit also comes with a pair of protective mechanic's gloves. The Jumpsuits are generally colored according to branch, but a light grey variant is available for use by all branches.