This soft, breathable tee carries a wry sense of humor in a vintage-workwear aesthetic. The bold, distressed lettering reads like a stamped proclamation — “Licensed to Mutter Under My Breath.” It settles casually on the chest, faded tan on a deep black ground, giving an authentic lived-in look. Lightweight Airlume combed ring-spun cotton keeps the shirt comfortable from morning errands to late-night banter. Subtle construction details — side seams, ribbed knit collar, shoulder tape and a tear-away label — keep the fit tidy and irritation-free. Wear it when you want your sarcasm to be readable but relaxed: layered under a flannel, paired with jeans, or lounging around on slow afternoons.

Product features
– 100% Airlume combed ring-spun cotton (lightweight, breathable)
– Retail crew neckline with ribbed knit collar and seam for shape retention
– Side seams and shoulder tape for durability and stable fit
– Tear-away label to reduce skin irritation; REACH certified compliance
– DTF/DTG-printed design with distressed vintage look; sourced blank from Honduras

Care instructions
– Machine wash: cold (max 30C or 90F)
– Non-chlorine: bleach as needed
– Tumble dry: low heat
– Iron, steam or dry: medium heat
– Do not dryclean

	S	M	L	XL	2XL	3XL
Width, in	18.00	20.00	22.00	24.00	26.00	28.00
Length, in	28.00	29.00	30.00	31.00	32.00	33.00
Sleeve length, in	8.90	9.20	9.50	9.70	10.00	10.40
Size tolerance, in	1.50	1.50	1.50	1.50	1.50	1.50

DESIGN & AI DISCLOSURE

Pressure Tested Co uses generative AI tools as part of our creative process, including concept development, artwork, design elements, and product imagery. Each product is creatively directed, selected, reviewed, and prepared for sale by Pressure Tested Co, with manual editing and refinement used where appropriate.

grumpy mechanic shirt

T-Shirt — “Licensed to Mutter Under My Breath” Funny Sarcastic Tee