Overview & Obtaining
Dusters are one of the classic hot-weather garments in rimworlds, often paired with a cowboy hat. As parkas are necessary to survive in very cold biomes, dusters are necessary to survive in very hot biomes (e.g. Arid Shrubland, Tropical Rainforest, Desert, etc.), and recommended for temperate biomes (i.e. Temperate Forest), as both are susceptible to heat waves, reaching up to or even exceeding 60 °C (140 °F) at the peak of summer. Dusters can be purchased from traders, crafted, or stripped from Outlanders and Pirates.
As a complicated garment, dusters require complex clothing to be researched and can only be made at a hand-tailoring bench or an electric tailoring bench. A duster requires 80 of any textile, and 167 units of work.
Conclusion and Comparison
Dusters are usually seen as preferable to jackets, since dusters provide identical armor bonuses, also cover the neck and legs, and have slightly higher hit points (200 vs. 160). Insulation wise, dusters offer significantly better insulation from heat (85% vs. 30%), but worse insulation from cold (60% vs. 80%) and require slightly more resources to craft.
In cold biomes, parkas are usually preferable to dusters. While parkas offer less armor than a duster (20% vs. 30%) and don't cover the legs, they are significantly better at insulating from cold (200% vs. 60%)
Dusters offer a high amount of insulation from heat (85%), and a decent amount of insulation from cold (60%). The exact insulation in-game depends on the textile used and the quality of the crafted item. Assuming normal quality, a duster offers: