Flak jacket

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Flak jacket

Flak jacket

A tough fabric jacket with armor plates sewn in. While it's not as good as solid armor, it offers effective protection against all manner of attacks while remaining quite comfortable.

Base Stats

Tech Level
Market Value
290 Silver
4 kg


Insulation - Cold
14.4 °C (25.9 °F)
Insulation - Heat
°C (5.4 °F)
Armor - Sharp
Armor - Blunt
Armor - Heat
Torso, Neck, Left Shoulder, Left Arm, Right Shoulder, Right Arm


Crafted At
Machining table
Required Research
Flak armor
Skill Required
Crafting 4
Work To Make
14,000 ticks (3.89 mins)
Resources to make
Steel 70 + Cloth 50 + Component 1

The flak jacket is a piece of protective apparel. It provides protection to the torso and arms at the cost of a -0.12 c/s penalty to movement speed.


Flak jackets can be crafted at a Machining table once the Flak armor research project has been completed. They require Steel 70 Steel, Cloth 50 Cloth, Component 1 Component, 14,000 ticks (3.89 mins) of work, and a Crafting skill of 4.

Flak jackets can also be commonly found on Outlanders, Pirates, Ancients, and Imperial Troopers Content added by the Royalty DLC.


With low resource costs, accessible research, and the ability to be worn over flak vests, flak jackets can provide useful protection in the early game. However once sufficient devilstrand is available, typically by mid-late game, devilstrand dusters are almost strictly superior, with their only statistical downside being a tiny decrease in cold insulation. Devilstrand dusters cover the legs, provide slightly more sharp and blunt protection, significantly more heat insulation as well as excellent heat protection, and eliminate the movement speed penalty. Other late-game materials such as Hyperweave and Thrumbofur offer similar effects. Due to the speed and coverage detriments of flak jackets, even dusters of strong leathers, like rhinoceros leather may be preferable despite offering slightly less protection to the upper body.

Quality table

  • Quality Sharp Blunt Heat Item HP Insulation - Cold Insulation - Heat Market Value
    Awful Flak jacket 24% 4.8% 6% 260 -11.52 °C (-20.7 °F) +2.4 °C (4.3 °F) 145 Silver
    Poor Flak jacket 32% 6.4% 8% 260 -12.96 °C (-23.3 °F) +2.7 °C (4.9 °F) 215 Silver
    Normal Flak jacket 40% 8% 10% 260 -14.4 °C (-25.9 °F) +3 °C (5.4 °F) 290 Silver
    Good Flak jacket 46% 9.2% 11.5% 260 -15.84 °C (-28.5 °F) +3.3 °C (5.9 °F) 360 Silver
    Excellent Flak jacket 52% 10.4% 13% 260 -17.28 °C (-31.1 °F) +3.6 °C (6.5 °F) 435 Silver
    Masterwork Flak jacket 58% 11.6% 14.5% 260 -21.6 °C (-38.9 °F) +4.5 °C (8.1 °F) 725 Silver
    Legendary Flak jacket 72% 14.4% 18% 260 -25.92 °C (-46.7 °F) +5.4 °C (9.7 °F) 1450 Silver

    For the full effects of qualities, see Quality.

  • Styles

    Ideoligions allow the selection of styles which then change the texture of the certain items and buildings when constructed by the colony. These style variants can be crafted if the colony has the selected style, or can be looted from raiders from factions with the requisite style.

    Version history

    • 1.0.0 - Added. Still using jacket art.