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

Have you ever noticed that some clothes feel better on your skin than others? Maybe a cotton T-shirt feels soft and breathable, while certain synthetic fabrics make you itch or sweat more. There’s real science behind why natural cotton is often the healthiest choice for your skin — especially if you wear clothesfor long hours.

What Happens Between Your Skin and Fabric?

Your skin isn’t just a surface; it’s a living, breathing organ that needs the right environment to stay healthy. The “microclimate” — the tiny space between your skin and the fabric — plays a big role. It controls temperature, moisture, and how well your skin’s natural barrier works.

If this microclimate gets out of balance — say the fabric traps too much heat and moisture or irritates your skin — you can develop dryness, itching, redness, or even rashes.

The Science: What Happens When Skin Meets Different Fabrics?

A recent study looked at how different materials affect the skin’s microclimate. Researchers tested polyester, cotton, chloroprene rubber and silicone — fabrics often used in clothes and medical devices that touch skin for long periods.

Here’s what they found:

Temperature: All materials lowered the skin temperature slightly, but rubber-based materials cooled the skin more aggressively — which might sound good but can cause problems too.
Moisture: Every fabric increased skin moisture under the fabric, but cotton caused the least moisture buildup. Too much moisture can lead to skin irritation and infections.
Skin Barrier Health: Synthetic fabrics like polyester, rubber, and silicone significantly disrupted the skin’s protective barrier, measured by a drop in skin antioxidants and increased water loss through the skin. Cotton did not have this negative effect.
Skin Surface Integrity: Using high-tech imaging, scientists saw that synthetic materials altered the outermost skin layer, possibly causing micro-damage. Cotton left the skin surface intact and healthy.

Why Should You Care?

When synthetic fabrics trap heat and moisture, or damage your skin barrier, they increase your risk of irritation, itching and even chronic skin problems like eczema or dermatitis. Natural cotton, on the other hand, breathes better, keeps moisture balanced and protects your skin’s natural defenses.

This is especially important if you have sensitive skin or use medical supports like braces, casts or compression garments.

What Should You Do?

Choose cotton whenever you can: For everyday clothes, sleepwear, underwear, and especially anything worn close to your skin for hours.
Be cautious with synthetics: If you must wear polyester or other synthetics (like workout gear), try to limit continuous skin contact or look for blends with cotton.
If you have sensitive skin or skin conditions: Cotton is the safest and most comfortable choice.

Final Thought

Your skin deserves care every day and the fabrics you wear play a bigger role than you might think. By choosing natural ELS cotton, you give your skin the best chance to stay healthy, hydrated and comfortable—whether you’re at work, home or travelling.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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