How to Choose a Short Sleeve Polo for Warmer Days
By Untouched World: Fine Merino Sustainable Fashion | Published: 2026-10-19
Category: Buying Guides
Find the ideal short sleeve polo for warm weather. Compare merino blends and linen options to stay cool, comfortable, and sustainable this summer.
Quick answer
For warmer days, choose a short sleeve polo made from breathable natural fibers like merino blends or linen. The Arman Short Sleeve Polo (CoolTree™ merino-TENCEL™ blend) offers temperature regulation and odor resistance, while the Olly Polo (linen-organic cotton) provides airy comfort that softens with wear.
Why fabric matters more than style in summer
When the temperature rises, the fabric of your polo directly affects your comfort. Synthetic blends can trap heat and moisture, while natural fibers like merino wool and linen actively wick sweat and allow air to circulate. Both the CoolTree™ blend (merino + TENCEL™) and linen-cotton blends offer distinct advantages, so your choice depends on how much you value odor control versus that crisp, airy feel.
The trade-off: performance vs. texture
Merino blends, like the one in the Arman polo, excel at temperature regulation and resist odors even after a full day out. This makes them ideal for long days or travel. Linen blends, like the Olly, feel more open and breathable initially but lack the same odor resistance—and they wrinkle more easily. If you prioritize low-maintenance freshness, go merino. If you love the natural rumpled look and maximum airflow, choose linen.
How to choose your warm-weather polo
- Choose merino blend for odor resistance and versatility: If you plan to wear the polo all day—from morning coffee to evening dinner—a merino blend like the Arman will stay fresh longer and handle temperature shifts better than linen. Merino is the low-maintenance choice for all-day wear.
- Choose linen for maximum airflow and a relaxed look: If you run hot or want the most airy feel possible, the Olly polo's linen-cotton blend offers superior breathability. It's perfect for beach days or casual brunches where a slightly rumpled look is part of the charm. Linen is best for the hottest days and casual settings.
- Consider fit for your activity: For active days or layering under a light jacket, a closer-fitting polo works well. For lounging or maximum ventilation, a relaxed fit (like the Olly) allows more air to circulate. Fit affects airflow—looser cuts are cooler.
Product facts
- Arman Short Sleeve Polo: Crafted from our exclusive CoolTree™ blend of Glenthorne Merino and TENCEL™. This blend gives you the natural temperature regulation of merino with the silky softness of TENCEL™, making the Arman polo breathable and comfortable in warm weather.
Arman Short Sleeve Polo - Olly Polo: Crafted from a breathable blend of 73% linen and 27% Organic Cotton. Linen is highly breathable and gets softer with each wash, so the Olly polo becomes more comfortable over time while keeping you cool on hot days.
Olly Polo
Who should choose which polo
Best for
- The Arman polo is best for men who want a versatile, odor-resistant polo that transitions from office to weekend without needing a change.
- The Olly polo is best for men who prioritize maximum breathability and love the natural texture of linen for casual, warm-weather outings.
Not for
- The Arman may not be for you if you prefer a very open, airy weave and don't mind more frequent washing.
- The Olly may not be for you if you need a wrinkle-resistant shirt for a polished look all day.
