T-Shirt Size Guide Flat Lay Measurements

Finding your perfect fit is easy.

Lay a well-fitting T-shirt flat on a surface.
Measure across these key areas:

Measure the Chest (Bust) — “A” – From armpit to armpit
Measure the Waist — “B” – Across the narrowest point
Measure the Hips — “C” – Across the bottom hem
Measure the Length — “D” – From the top of the shoulder (near the collar) to the bottom hem
Measure the Shoulders — “E” – From one shoulder seam to the other

Model 4 – Men’s Wide Shoulders Fit (Flat Measurements)

Model 4 is tailored for broad shoulders and narrow waists.
It also fits women and kids with similar body shapes.
Please check the sizing chart for the perfect fit.

Size	Chest (Bust) — “A”		Waist — “B”		Hips — “C”		Length — “D”		Shoulders — “E”
	inches	cm	inches	cm	inches	cm	inches	cm	inches	cm
4XS	16 1/4	41.27	15 1/4	38.74	15 1/4	38.74	26 1/2	67.31	4	10.16
3XS	16 3/4	42.55	15 3/4	40.01	15 3/4	40.01	27	68.58	4 1/8	10.48
2XS	17 1/4	43.81	16 1/4	41.28	16 1/4	41.28	27 1/2	69.85	4 1/4	10.80
XS	17 3/4	45.09	16 5/8	42.23	16 5/8	42.23	28	71.12	4 1/2	11.43
S	18 1/4	46.36	17 1/8	43.52	17 1/8	43.52	28 1/2	72.39	4 3/4	12.07
M	18 7/8	47.94	17 3/4	45.09	17 3/4	45.09	29	73.66	5	12.70
L	19 7/8	50.48	18 3/4	47.63	18 3/4	47.63	29 1/2	74.93	5 1/4	13.34
XL	20 7/8	53.02	19 3/4	50.17	19 3/4	50.17	30	76.2	5 1/2	13.97
2XL	21 1/2	54.61	20 1/2	52.07	20 1/2	52.07	30 1/2	77.47	5 3/4	14.61
3XL	23	58.42	22	55.88	22	55.88	31	78.74	6	15.24
4XL	24 1/2	62.23	23 1/2	59.69	23 1/2	59.69	31 1/2	80.01	6 1/2	16.51

T-Shirt Size Guide – Flat Lay Measurements

Finding your perfect fit is easy.

Lay a well-fitting T-shirt flat on a surface.
Measure across these key areas:

Measure the Chest (Bust) — “A” – From armpit to armpit
Measure the Waist — “B” – Across the narrowest point
Measure the Hips — “C” – Across the bottom hem
Measure the Length — “D” – From the top of the shoulder (near the collar) to the bottom hem
Measure the Shoulders — “E” – From one shoulder seam to the other

T-Shirt Size Guide Model 3 – Classic Men’s / Unisex T-Shirt

Model 3 tee with balanced proportions and clean lines.
This versatile style provides a relaxed fit suitable for all body types.
Although designed for men, it looks great on women who prefer a casual or slightly oversized tee.

Size	Chest (Bust) — “A”		Waist — “B”		Hips — “C”		Length — “D”		Shoulders — “E”
-	inches	cm	inches	cm	inches	cm	inches	cm	inches	cm
4XS	16 7/8	42.86	15 3/4	40.01	16 7/8	42.86	26	66	4 3/4	12.07
3XS	17 3/8	44.15	16 1/4	41.28	17 3/8	44.15	26 1/2	67.31	4 7/8	12.38
2XS	17 7/8	45.41	16 3/4	42.55	17 7/8	45.41	27	69	5	12.70
XS	18 3/8	46.67	17 1/4	43.82	18 3/8	46.67	27 1/2	69.85	5 1/8	13.02
S	19 1/8	48.58	18	45.72	19 1/8	48.58	28	71	5 1/4	13.34
M	19 7/8	50.5	18 3/4	47.63	19 7/8	50.5	28 1/2	72.39	5 3/8	13.65
L	20 5/8	52.39	19 1/2	49.53	20 5/8	52.39	29	74	5 1/2	13.97
XL	21 3/8	54.29	20 1/4	51.44	21 3/8	54.29	29 1/2	74.93	5 5/8	14.29
2XL	22 1/8	56.2	21	53.34	22 1/8	56.2	30	76	5 3/4	14.61
3XL	22 7/8	58.1	21 3/4	55.25	22 7/8	58.1	30 1/2	77.47	5 7/8	14.92
4XL	23 5/8	60	22 1/2	57.15	23 5/8	60	31	78.74	6	15.24

T-Shirt Size Guide – Flat Lay Measurements

Finding your perfect fit is easy.

Lay a well-fitting T-shirt flat on a surface.
Measure across these key areas:

Measure the Chest (Bust) — “A” – From armpit to armpit
Measure the Waist — “B” – Across the narrowest point
Measure the Hips — “C” – Across the bottom hem
Measure the Length — “D” – From the top of the shoulder (near the collar) to the bottom hem
Measure the Shoulders — “E” – From one shoulder seam to the other

Model 1 – Women’s & Girl’s Fitted Tee (Flat-Lay Measurements)

Designed with a flattering feminine silhouette, this tee features a gently curved waist and a tailored fit
that complements the body without clinging.
Perfectly suited for women and girls alike, it offers a comfortable and stylish fit at any age.

Size	Chest (Bust) — “A”		Waist — “B”		Hips — “C”		Length — “D”		Shoulders — “E”
	inches	cm	inches	cm	inches	cm	inches	cm	inches	cm
4XS	14 1/2	36.83	13 1/4	33.66	15 1/2	39.37	23 3/4	60.33	3 1/4	8.26
3XS	15 1/2	39.37	14	35.56	16 1/4	41.28	24 1/4	61.6	3 1/4	8.26
2XS	16 1/4	41.28	14 3/4	37.47	17	43.18	25	63.5	3 3/8	8.57
XS	17	43.18	15 1/2	39.37	18	45.72	25 1/2	64.77	3 1/2	8.89
S	18	45.72	16 1/2	41.91	19	48.26	26 1/4	66.68	3 5/8	9.21
M	19	48.26	17 1/2	44.45	20	50.8	26 3/4	67.95	3 3/4	9.53
L	20	50.8	18 1/4	46.36	21	53.34	27 1/4	69.22	3 7/8	9.84
XL	21	53.34	19 1/4	48.9	22	55.88	27 3/4	70.49	4	10.16
2XL	22	55.88	20 1/4	51.44	23	58.42	28 1/4	71.76	4 1/8	10.48
3XL	22 3/4	57.79	21	53.34	23 3/4	60.33	28 3/4	73.03	4 1/4	10.80
4XL	23 1/2	59.69	21 3/4	55.25	24 1/2	62.23	29	73.66	4 1/2	11.43

Pima Prima® Size Guide

Finding the perfect fit is key to feeling comfortable and confident in your Pima Prima® T-shirt.

Below are the essential measurements for each model to help you choose the right size.

Key Measurements Explained:

Bust/Chest

Measured across the fullest part of the chest (for women) or chest width (for men)

Waist/Hips

Measured at the narrowest point of the waist or fullest part of the hips (for women)

Length

Measured from the highest shoulder point to the bottom hem of the T-shirt

Our Models:

Model 1 – Women’s Fitted
Designed for a flattering, feminine shape with a slightly curved waist. Perfect on its own or layered under a jacket.

Model 3 – Classic Men’s - fit a Women.
A timeless straight-cut fit with balanced proportions, suitable for all body types.

Model 4 – Men’s Wide Shoulders Fit
Created for broader chests and slimmer waists — this athletic cut tapers naturally for a clean, modern silhouette.

Note:

Models 3 and 4, designed with a relaxed and growth fit, can also perfectly suit petite women looking for an oversized, comfortable style. Just be sure to check the measurements carefully to find the best fit for you.

Fit with Confidence – And Consciousness
At Pima Prima® we want you to feel great in your T-shirt. That’s why we offer returns if you're not fully satisfied with your size. But we’re also here to address a bigger issue: the environmental impact of returns and long-distance logistics.

Every return shipped across borders contributes to unnecessary carbon emissions and packaging waste. Our goal is to reduce this burden by helping you choose the right size the first time — through clear measurements, detailed guidance and personalized support.

The problem we’re solving:
Traditional fashion returns create up to 15 million metric tons of CO₂ emissions annually and generate tons of landfill waste. We're working to minimize that footprint — not by eliminating returns, but by making them smarter, fewer, and more sustainable.

Wait! Don’t Go Yet! 👋

Don’t leave these cozy Pima Cotton outfits behind! 😊
Take another look, maybe you missed something?

💖View Offer

Ever worn a polyester gym shirt that felt suffocating? Or a synthetic top that made you itch halfway through the day? We’ve all been there. Some clothes just feel better — softer, cooler, more natural. And that’s not an accident.

There’s real science behind why natural cotton — especially premium ELS cotton like Pima Prima’s — is healthier for your skin than synthetics.

Your Skin Isn’t Just a Surface

Think of your skin as more than a cover. It’s a living organ that breathes. Between your skin and fabric lies a tiny “microclimate.” That microclimate controls temperature, moisture, and how strong your skin’s natural barrier stays.

When that balance is thrown off — too much heat, too much sweat, or irritation — you get redness, itching, or even rashes.

What Science Says: Cotton vs. Synthetics

A recent study tested cotton, polyester, silicone, and rubber. The results were clear:

Temperature: All fabrics cooled the skin a little, but rubber overcooled, stressing the skin.
Moisture: Cotton caused the least sweat buildup. Polyester and rubber trapped much more.
Skin barrier health: Synthetic fabrics disrupted your skin’s defenses — cotton didn’t.
Skin surface: Under imaging, polyester and rubber left micro-damage. Cotton kept skin intact.

In short: cotton works with your skin. Synthetics often work against it.

Real-Life Scenarios

That polyester gym shirt that feels like a plastic bag? It’s trapping heat and sweat.

That synthetic blouse that makes you scratch during a long day at the office? It’s irritating your skin barrier.

That cotton tee you sleep in and forget you’re wearing? That’s skin comfort in action.

Why It Matters Every Day

Most of us wear clothes 12 to 16 hours daily. If fabric is irritating, you feel it all day long.

That’s why natural cotton — especially Pima Prima’s extra-long staple cotton — makes such a difference. It breathes better, balances moisture, and keeps your skin calm. For sensitive skin or everyday comfort, it’s the safest choice.

What To Do

Choose cotton for daily wear, underwear, and sleepwear.
If you wear synthetics (like gym clothes), limit continuous contact or mix them with cotton.
Sensitive skin? Go with natural fabrics — your body will thank you.

Your skin deserves more than “whatever fabric was cheapest.” It deserves breathable, healthy comfort. That’s why Pima Prima designs t-shirts with organic ELS cotton — so your skin stays happy whether you’re at work, at the gym, or winding down at home.

Because when your clothes work with your skin, you don’t just look better — you feel better.

Want to dive into the research yourself? Check out the full study here:
Microclimatic effects of medical supporting textiles on human skin in vivo – PubMed

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