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UPF 50+
Wearable breathable sun protection without the re-application
ONE Shirt Kids – UPF 50 Bamboo Sun + Base Layer | Play Outside
Regular price
$44.00
All-Season Versatility: Lightweight and breathable for summer sun (UPF 50+), cozy and moisture-wicking as a winter base layer.
Dual-Size Fit (like T3/T4): Each shirt fits longer with fold back sleeves, ideal for growing kids and minimalist wardrobes.
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.
Full Size charts below, just scroll down
Kids sizes
are combined and made to last 2 years. Sleeves are cuffed to be able to fold if needed.
The shirts fit true to the larger size, with foldable sleeves to be comfortable for the lower size. For example, A T3/T4 shirt is a true T4 with sleeves that fold to accommodate T3 comfortably.
Fit is slightly loose (embrace the comfy slouch)
- With every item you buy from Play Outside, we save 2 or more from a landfillThrough our partnership with OSOMTEX.
- We offset the carbon from shipping by planting trees through our partnership with One Tree Planted
- We select materials that are kind to the environment, while remaining the best for outdoor adventure.
FAQs: The ONE Bamboo Shirt
1. What is The ONE Shirt?
The ONE Shirt is Play Outside's all-season, all-purpose, super-soft bamboo shirt for kids. 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 kids 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 kids 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 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 kids with sensitive skin?
Absolutely! The bamboo fabric is hypoallergenic and super soft, making it gentle and safe for children 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.
Regular price
$44.00
All-Season Versatility: Lightweight and breathable for summer sun (UPF 50+), cozy and moisture-wicking as a winter base layer.
Dual-Size Fit (like T3/T4): Each shirt fits longer with fold back sleeves, ideal for growing kids and minimalist wardrobes.
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.
Full Size charts below, just scroll down
Kids sizes
are combined and made to last 2 years. Sleeves are cuffed to be able to fold if needed.
The shirts fit true to the larger size, with foldable sleeves to be comfortable for the lower size. For example, A T3/T4 shirt is a true T4 with sleeves that fold to accommodate T3 comfortably.
Fit is slightly loose (embrace the comfy slouch)
- With every item you buy from Play Outside, we save 2 or more from a landfillThrough our partnership with OSOMTEX.
- We offset the carbon from shipping by planting trees through our partnership with One Tree Planted
- We select materials that are kind to the environment, while remaining the best for outdoor adventure.
FAQs: The ONE Bamboo Shirt
1. What is The ONE Shirt?
The ONE Shirt is Play Outside's all-season, all-purpose, super-soft bamboo shirt for kids. 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 kids 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 kids 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 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 kids with sensitive skin?
Absolutely! The bamboo fabric is hypoallergenic and super soft, making it gentle and safe for children 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.
Baby + Toddler Size Guide
Find your perfect fit using our size chart below
| Size | Chest (in) | Length (in) | Sleeves (in) |
|---|---|---|---|
| 0-12 Months | 11.0 | 13.4 | 11.8 |
| T1/T2 | 11.8 | 15.7 | 13.8 |
| T3/T4 | 13.4 | 17.3 | 15.7 |
| T5/T6 | 14.6 | 18.5 | 17.3 |
All measurements are in inches. Chest measurement is taken flat from one under arm to the other. For round measurement simply double it.
Youth Size Guide
Find your perfect fit using our size chart below
| Size | Chest (in) | Length (in) | Sleeves (in) |
|---|---|---|---|
| YS (7 - 8 year old) | 15.7 | 20.5 | 18.9 |
| YM (9 - 10 year old) | 16.5 | 21.6 | 20.4 |
| YL (11 - 12 year old) | 17.3 | 22.8 | 22.5 |
All measurements are in inches. Chest measurement is taken flat from one under arm to the other. For round measurement simply double it.
Youth size ages are estimates and can vary. Please check measurement for best fit.
A QUICK SNAPSHOT
THE ONE SHIRT
IN A NUTSHELL
Unmatched Softness
Soft bamboo fabric is gentle on sensitive skin, for all-day comfort.
Works all year
Lightweight and breathable for summer sun, cozy and moisture-wicking as a winter base layer.
Materials and standards
UPF 50+Bamboo ViscoseOEKO TEX CertifiedSkin Sensitive Friendly
A quick weather guide
Find the conditions this shirt is made for
Temperature range
30–85°F / 0–29°C
Climate
Dry and humid
Best conditions
☀ Sun☂ Rain☁ Cloudy
For extreme weather, use gear made for it. Below freezing, swap for a warm wool base layer. Above 90°F and high humidity, switch to an ultralight sun shirt or a tank top.
Great for
- Outdoor adventures, hiking, fishing and camping
- Beach outings and playground fun
- Everyday wear and winter layering
Not so great for
- Swimming (it is not a rashguard)
- Replacing sunscreen on uncovered skin
- Heavy insulation or rain protection
