Just put any 2 ONE Shirts in your cart (kids or adult) and a Women's ALL tank of your choosing, and the ALL Tank will be automatically FREE
UPF 50+
Wearable breathable sun protection without the re-application
SCROLL DOWN FOR A GUIDE ON WHAT THE ONE SHIRT DOES BEST, VS WHAT IT'S NOT FOR
All-Season Versatility: Lightweight and breathable for summer sun (UPF 50+), cozy and moisture-wicking as a winter base layer.
Antimicrobial & Odor-Resistant: Stays fresh, even after messy outdoor play.
Soft Bamboo: Gentle on sensitive skin, perfect for all-day wear and even pajamas.
Tagless Comfort: No itch, great for kids with sensory sensitivities.
Extra Sun Protection: Hood provides added shade or fits under helmets.
Thumb Holes: Easy layering, no bunching. Warm hands.
Run true to size.
Fits is slightly loose for max comfort. If you prefer a close to skin fit, consider one size down. The fabric is incredibly stretchy.
If you are a woman's XS, the Youth Large is the equivalent of a Women's XS
1. What is The ONE Shirt?
The ONE Shirt is Play Outside's all-season, all-purpose, super-soft bamboo shirt.. It’s designed to be the ultimate versatile piece for every season and activity, from summer hikes to winter layering, and even as cozy pajamas. It’s made with sustainability, comfort, and durability in mind.
2. What makes The ONE Shirt different from regular shirts?
The ONE Shirt is crafted from a high-quality bamboo blend that’s naturally breathable, moisture-wicking, and thermo-regulating. This means it keeps you cool in the summer and warm in the winter. It’s also anti-odor, incredibly soft, and safe for sensitive skin, making it perfect for active outdoor play and everyday adventures.
3. What seasons is The ONE Shirt suitable for?
The ONE Shirt is designed for all seasons. In warmer months, its breathable bamboo fabric helps keep you cool and protected from the sun. In cooler months, it’s perfect as a base layer due to its moisture-wicking and temperature-regulating properties.
4. How do I style The ONE Shirt for different weather conditions?
In summer, pair it with shorts or lightweight pants for a breathable, sun-safe outfit. In winter, layer it under jackets, hoodies, or heavier sweaters as a soft, moisture-wicking base layer. If there is snow, make sure to tuck the hood under the sweater so it stays dry. It’s also great as cozy sleepwear!
5. Is The ONE Shirt eco-friendly?
Yes! The ONE Shirt is made with a bamboo blend, which is an and eco-friendly material. Bamboo grows quickly, requires less water, and regenerates naturally, making it an excellent choice for environmentally-conscious parents. We also donate to OSOMTEX making sure that for every product you buy, we remove fashion waste from landfills.
6. How does The ONE Shirt hold up against wear and tear?
The ONE Shirt is designed with durability in mind. Its bamboo blend fabric is not only soft but also strong and resilient to rough play and outdoor adventures. It’s also machine washable, making it easy to care for.
7. How do I care for The ONE Shirt?
For best results, machine wash The ONE Shirt in cold water and lay it flat or hang it to dry. This helps maintain its shape, softness, and durability over time. Avoid using bleach or fabric softeners.
8. Is The ONE Shirt suitable for sensitive skin?
Absolutely! The bamboo fabric is hypoallergenic and super soft, making it gentle and safe for people with sensitive skin. It’s free from harsh chemicals and designed with kids’ comfort in mind.
9. Can The ONE Shirt be worn as pajamas?
Yes! The ONE Shirt is so soft and comfortable that it’s perfect for sleepwear. It’s breathable and keeps your little one cozy without overheating, making it ideal for restful sleep.
10. Does The ONE Shirt provide sun protection?
Yes, The ONE Shirt offers UPF 50+ protection, helping to shield your child from harmful UV rays during outdoor activities.
SCROLL DOWN FOR A GUIDE ON WHAT THE ONE SHIRT DOES BEST, VS WHAT IT'S NOT FOR
All-Season Versatility: Lightweight and breathable for summer sun (UPF 50+), cozy and moisture-wicking as a winter base layer.
Antimicrobial & Odor-Resistant: Stays fresh, even after messy outdoor play.
Soft Bamboo: Gentle on sensitive skin, perfect for all-day wear and even pajamas.
Tagless Comfort: No itch, great for kids with sensory sensitivities.
Extra Sun Protection: Hood provides added shade or fits under helmets.
Thumb Holes: Easy layering, no bunching. Warm hands.
Run true to size.
Fits is slightly loose for max comfort. If you prefer a close to skin fit, consider one size down. The fabric is incredibly stretchy.
If you are a woman's XS, the Youth Large is the equivalent of a Women's XS
1. What is The ONE Shirt?
The ONE Shirt is Play Outside's all-season, all-purpose, super-soft bamboo shirt.. It’s designed to be the ultimate versatile piece for every season and activity, from summer hikes to winter layering, and even as cozy pajamas. It’s made with sustainability, comfort, and durability in mind.
2. What makes The ONE Shirt different from regular shirts?
The ONE Shirt is crafted from a high-quality bamboo blend that’s naturally breathable, moisture-wicking, and thermo-regulating. This means it keeps you cool in the summer and warm in the winter. It’s also anti-odor, incredibly soft, and safe for sensitive skin, making it perfect for active outdoor play and everyday adventures.
3. What seasons is The ONE Shirt suitable for?
The ONE Shirt is designed for all seasons. In warmer months, its breathable bamboo fabric helps keep you cool and protected from the sun. In cooler months, it’s perfect as a base layer due to its moisture-wicking and temperature-regulating properties.
4. How do I style The ONE Shirt for different weather conditions?
In summer, pair it with shorts or lightweight pants for a breathable, sun-safe outfit. In winter, layer it under jackets, hoodies, or heavier sweaters as a soft, moisture-wicking base layer. If there is snow, make sure to tuck the hood under the sweater so it stays dry. It’s also great as cozy sleepwear!
5. Is The ONE Shirt eco-friendly?
Yes! The ONE Shirt is made with a bamboo blend, which is an and eco-friendly material. Bamboo grows quickly, requires less water, and regenerates naturally, making it an excellent choice for environmentally-conscious parents. We also donate to OSOMTEX making sure that for every product you buy, we remove fashion waste from landfills.
6. How does The ONE Shirt hold up against wear and tear?
The ONE Shirt is designed with durability in mind. Its bamboo blend fabric is not only soft but also strong and resilient to rough play and outdoor adventures. It’s also machine washable, making it easy to care for.
7. How do I care for The ONE Shirt?
For best results, machine wash The ONE Shirt in cold water and lay it flat or hang it to dry. This helps maintain its shape, softness, and durability over time. Avoid using bleach or fabric softeners.
8. Is The ONE Shirt suitable for sensitive skin?
Absolutely! The bamboo fabric is hypoallergenic and super soft, making it gentle and safe for people with sensitive skin. It’s free from harsh chemicals and designed with kids’ comfort in mind.
9. Can The ONE Shirt be worn as pajamas?
Yes! The ONE Shirt is so soft and comfortable that it’s perfect for sleepwear. It’s breathable and keeps your little one cozy without overheating, making it ideal for restful sleep.
10. Does The ONE Shirt provide sun protection?
Yes, The ONE Shirt offers UPF 50+ protection, helping to shield your child from harmful UV rays during outdoor activities.
Find your perfect fit using our size chart below
| Size | Chest (in) | Length (in) | Sleeves (in) |
|---|---|---|---|
| W. Small | 18.1 | 24 | 22.8 |
| W. Medium | 19.5 | 25.2 | 23.6 |
| W. Large | 20.5 | 26 | 24 |
| W. X Large | 22 | 26.8 | 24.4 |
All measurements are in inches. Chest is taken from one under arm to the other, for round measurement, simply double it.
A QUICK SNAPSHOT
IN A NUTSHELL
Wearable breathable sun protection without the re-application
Either the softest shirt you own, or we will take it back.
Use it as a base layer under insulation for a breathable and super soft skin sensitive friendly base layer.
Find the conditions this shirt is made for
30–85°F / 0–29°C
Dry and humid
For extreme weather, use gear made for it. Below freezing, add a warm wool base layer. Above 90°F and high humidity, switch to an ultralight sun shirt or a tank top.