Flak pants

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Flak pants

Flak pants

A pair of pants 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
225 Silver
4 kg


Insulation - Cold
3.5 °C (6.3 °F)
Insulation - Heat
°C (1.8 °F)
Armor - Sharp
Armor - Blunt
Armor - Heat
Left Leg, Right Leg
Skin, Middle


Crafted At
Machining table
Required Research
Flak armor
Skill Required
Crafting 4
Work To Make
9,000 ticks (2.5 mins)
Resources to make
Steel 60 + Cloth 30 + Component 1

Flak pants is a piece of protective apparel. It provides protection to the legs at the cost a -0.12 c/s penalty to movement speed.


Flak pants can be crafted at a Machining table once the Flak armor research project has been completed. They require Steel 60 Steel, Cloth 30 Cloth, Component 1 Component, 9,000 ticks (2.5 mins) of work, and a Crafting skill of 4.

Flak pants 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 with duster, Flak Pants can provide useful protection in the early game. It can be used to protect the legs from harm. Jackets and shirts do not protect the legs, and damage to the legs can severely impair colonists, so this is a good option to protect colonists. However the penalty of -0.12 c/s to movement speed can make it less valuable for day to day life on pawns that need to walk around often (e.g. Growers).

Unlike flak jackets, they are not made totally obsolete mid-game by the supply of devilstrand, and instead pants require late-game materials like Hyperweave or Thrumbofur to achieve parity on sharp armor. However they do come with a movement penalty, and they take up both the Skin and Middle layers meaning that while they can be worn with a duster, they cannot be worn with plate or power armor of any kind, such as Recon armor, Marine armor or Cataphract armor. Additionally, the Heat armor offered by devilstrand pants is significant, representing a 45% reduction in damage from fire even at Normal quality. These factors can make their abandonment worthwhile even before late game materials are available.

The exact protection of the legs offered by flak pans vs pants of varying materials and armor is reliant on the interactions between Armor Rating calculations and is currently unclear.

Quality table

  • Quality Sharp Blunt Heat Item HP Insulation - Cold Insulation - Heat Market Value
    Awful Flak pants 24% 4.8% 6% 140 -2.8 °C (-5 °F) +0.8 °C (1.4 °F) 113 Silver
    Poor Flak pants 32% 6.4% 8% 140 -3.15 °C (-5.7 °F) +0.9 °C (1.6 °F) 169 Silver
    Normal Flak pants 40% 8% 10% 140 -3.5 °C (-6.3 °F) +1 °C (1.8 °F) 225 Silver
    Good Flak pants 46% 9.2% 11.5% 140 -3.85 °C (-6.9 °F) +1.1 °C (2 °F) 280 Silver
    Excellent Flak pants 52% 10.4% 13% 140 -4.2 °C (-7.6 °F) +1.2 °C (2.2 °F) 335 Silver
    Masterwork Flak pants 58% 11.6% 14.5% 140 -5.25 °C (-9.5 °F) +1.5 °C (2.7 °F) 560 Silver
    Legendary Flak pants 72% 14.4% 18% 140 -6.3 °C (-11.3 °F) +1.8 °C (3.2 °F) 1125 Silver

    For the full effects of qualities, see Quality.

  • Protection Charts

    Sharp Armor Blunt Armor

    Version history