T-shirt

The T-shirt is one of two shirts available in core RimWorld. Compared to its alternative, the Button-down shirt, slightly reduced labour and material requirements at the cost of inferior coverage and cold insulation.

Acquisition

As a complicated garment, t-shirts can only be made at tailor benches, which requires Complex Clothing to be researched in order to be constructed. A t-shirt requires 40 of any textile, and 1,600 ticks (26.67 secs) of work.

T-shirts can also be purchased from traders or stripped from Outlanders, Pirates and Empire pawns.

Analysis

T-shirts are not particularly useful, given that button-down shirts are a strict upgrade with only a minor increase in cost. Comparing the two options:

T-shirts have the same armor values, but don't cover the arms or neck
T-shirts offer slightly worse insulation from cold (22% vs. 26%)
T-shirts require fewer textiles to craft (40 vs. 45) and take less work (27 vs. 45)

In fact, the combination of a t-shirt and pants is actually worse than tribalwear. Compared to a t-shirt and pants:

Tribalwear offers identical armor and coverage, except they don't cover the shoulders
Tribalwear has better insulation - cold (55% vs. 42%)
Tribalwear has much better insulation - heat (55% vs. 18%)
Tribalwear requires fewer textiles to craft (60 vs. 80) and takes significantly less work (30 vs. 54)

Material table

Material	Sharp	Blunt	Heat	Item HP	Insulation - Cold	Insulation - Heat	Market Value
Bearskin T-shirt	22.4%	4.8%	30%	130	-4.4 °C (-7.9 °F)	+2 °C (3.6 °F)	142
Birdskin T-shirt	13.4%	2.8%	30%	100	-2.2 °C (-4 °F)	+1 °C (1.8 °F)	78
Bluefur T-shirt	16.2%	4.8%	30%	130	-4.4 °C (-7.9 °F)	+1.6 °C (2.9 °F)	98
Camelhide T-shirt	16.2%	4.8%	30%	130	-3.52 °C (-6.3 °F)	+2.4 °C (4.3 °F)	98
Chinchilla fur T-shirt	13.4%	2.8%	30%	100	-6.6 °C (-11.9 °F)	+1.6 °C (2.9 °F)	265
Dog leather T-shirt	16.2%	4.8%	30%	130	-3.08 °C (-5.5 °F)	+1.6 °C (2.9 °F)	86
Dread leather T-shirt	25.4%	4.8%	30%	130	-4.4 °C (-7.9 °F)	+1.2 °C (2.2 °F)	146
Elephant leather T-shirt	22.4%	4.8%	30%	150	-3.08 °C (-5.5 °F)	+1.2 °C (2.2 °F)	103
Foxfur T-shirt	16.2%	4.2%	30%	100	-4.4 °C (-7.9 °F)	+1.6 °C (2.9 °F)	146
Guinea pig fur T-shirt	13.4%	2.8%	30%	60	-8.36 °C (-15 °F)	+1.8 °C (3.2 °F)	205
Heavy fur T-shirt	24.8%	4.8%	30%	150	-6.6 °C (-11.9 °F)	+1.4 °C (2.5 °F)	138
Human leather T-shirt	12.8%	4.8%	30%	130	-2.64 °C (-4.8 °F)	+1.2 °C (2.2 °F)	174
Lightleather T-shirt	10.8%	2.8%	30%	100	-2.64 °C (-4.8 °F)	+1.2 °C (2.2 °F)	82
Lizardskin T-shirt	16.2%	5.4%	30%	100	-2.64 °C (-4.8 °F)	+1.2 °C (2.2 °F)	90
Panthera fur T-shirt	18.6%	4.8%	30%	130	-3.52 °C (-6.3 °F)	+2.4 °C (4.3 °F)	126
Patchleather T-shirt	9%	3.8%	18%	100	-1.98 °C (-3.6 °F)	+0.9 °C (1.6 °F)	66
Pigskin T-shirt	12.8%	4.8%	30%	130	-2.64 °C (-4.8 °F)	+1.2 °C (2.2 °F)	82
Plainleather T-shirt	16.2%	4.8%	30%	130	-3.52 °C (-6.3 °F)	+1.6 °C (2.9 °F)	90
Rhinoceros leather T-shirt	25.8%	4.8%	30%	150	-3.08 °C (-5.5 °F)	+1.4 °C (2.5 °F)	174
Thrumbofur T-shirt	41.6%	7.2%	30%	200	-7.48 °C (-13.5 °F)	+2.2 °C (4 °F)	565
Wolfskin T-shirt	20.4%	4.8%	30%	130	-5.28 °C (-9.5 °F)	+1.6 °C (2.9 °F)	126
Alpaca wool T-shirt	7.2%	0%	22%	100	-6.6 °C (-11.9 °F)	+1.6 °C (2.9 °F)	158
Bison wool T-shirt	7.2%	0%	22%	100	-5.72 °C (-10.3 °F)	+1.2 °C (2.2 °F)	114
Cloth T-shirt	7.2%	0%	3.6%	100	-3.96 °C (-7.1 °F)	+1.8 °C (3.2 °F)	66
Devilstrand T-shirt	28%	7.2%	60%	130	-4.4 °C (-7.9 °F)	+2.4 °C (4.3 °F)	225
Hyperweave T-shirt	40%	10.8%	57.6%	240	-5.72 °C (-10.3 °F)	+2.6 °C (4.7 °F)	365
Megasloth wool T-shirt	16%	0%	22%	100	-7.48 °C (-13.5 °F)	+1.2 °C (2.2 °F)	114
Muffalo wool T-shirt	7.2%	0%	22%	100	-6.16 °C (-11.1 °F)	+1.2 °C (2.2 °F)	114
Sheep wool T-shirt	7.2%	0%	22%	100	-5.72 °C (-10.3 °F)	+1 °C (1.8 °F)	114
Synthread T-shirt	18.8%	5.2%	18%	130	-4.84 °C (-8.7 °F)	+2.2 °C (4 °F)	166