
Two of the world’s gentlest fibers, one thread
Every SOS piece starts with SkinSmart™, a custom lyocell spun fabric, creating a smooth surface that reduces nighttime friction so sensitive skin can rest easier.
Try for yourselfCustom SkinSmart™ Fabric, clinically proven to calm itching, softer with every wash, and cooler than cotton. Made for eczema and sensitive skin.
At SOS, we tackle clothing’s biggest irritants.
Less heat. Less friction. Less scratch.
Choose your fit
Introducing SkinSmart™, our proprietary fabric engineered for sensitive skin. Developed with the highest-grade lyocell fibers available, it’s doughy-soft, cooling, breathable, and anti bacterial. The most comfortable shirt for uncomfortable skin.
Introducing SkinSmart™, our proprietary fabric engineered for sensitive skin. Developed with the highest-grade lyocell fibers available, it’s doughy-soft, cooling, breathable, and anti bacterial. The most comfortable shirt for uncomfortable skin.
Choose your fit
Free shipping $80 · 30-day guarantee

Pulls heat off your skin all day. Heat is an itch trigger, so staying cool keeps you calm.
Smooth, rounded fibers glide with zero friction, and stay dry so bacteria never get a foothold. 97% said it's softer than anything they own.
No heat, no sweat, no scratchy seams waking you up at 3am. Just calm skin and actual rest.

Every SOS piece starts with SkinSmart™, a custom lyocell spun fabric, creating a smooth surface that reduces nighttime friction so sensitive skin can rest easier.
Try for yourself
No harsh chemical washes, ultra-soft lyocell fibers with breathable comfort, antibacterial protection, and a feel you have to touch to believe.
Read our reviews
Five years in the making, developed specifically for angry, reactive skin.
Origin story
Being an SOS affiliate means more than repping a brand. You’re part of a crew that takes care of its creators with AMAZING opportunities, and plenty of love along the way.
in development. We tested blend after blend on our own flaring skin until one finally passed. Your skin was worth the wait
Supports your skin's recovery during flare-ups. Cool, friction-free fibers calm the urge to scratch, and skin that isn't being scratched heals faster.
on skin is all it takes. That first "oh." moment when the fabric lands is why we exist.
We didn't add magic. We removed the triggers. Every fiber choice in SkinSmart™ exists to take away something that makes your skin react.

Flat, twisted ribbons with rough edges that snag and drag across inflamed skin.

Smooth, round, uniform strands with a hollow thermoregulating core.

Doughy-soft, up close



Everything you want to know about our fabrics, softness, fit, feel, and why people with sensitive skin are obsessed with these shirts.
SkinSmart™ Lyocell is the cellulose fiber the FTC officially defines as one made through a non-chemical organic solvent spin process. Translation: it's a wood-pulp fiber spun without harsh chemicals, which is why it won the EU Environmental Award in 2000. It's also OEKO-TEX Standard 100 product class 1 certified, the strictest tier, meaning it's safe enough for baby articles.
They start soft and stay soft. Most people tell us their SOS shirt feels like it's already been washed 100 times on the first wear. Because the softness comes from the fiber structure itself, not a chemical finish, it doesn’t wash out.
Built for it. In an independent trial of 40 adults with atopic dermatitis wearing SOS tees, 97% said it was softer than normal clothing, 55% noticed less itching, and 73% would recommend it to others with the same condition. A separate 4-week pediatric study at the Stegersbach Spa Health Centre in Austria found SkinSmart™ SOS sleepwear reduced scratching in people with mild to moderate dermatitis.
Three things. One: the yarn (SkinSmart™) is symmetrically rounded and friction-free, so it doesn’t scrape or chafe like normal cotton. Two: the fibers absorb 50% of their weight in moisture before feeling damp, beating cotton, polyester, nylon, even silk. Three: permanently embedded zinc oxide that’s clinically proven to be anti-inflammatory and skin-soothing. None of it washes out.
The fibers are hollow and thermo-regulating, so they breathe and cool naturally. Independent testing shows apparel made from lyocell and runs 1–2°C (about 2–4°F) cooler than normal apparel in hot humid weather. The yarn surface is also rounder and smoother than cotton, which is what makes it feel doughy soft instead of scratchy.
Minimal. SkinSmart™ has very low shrink rates compared to 100% cotton. Wash cold, tumble dry low, and you’re good for the long haul. We recommend skipping fabric softener since the fibers are already softer than what softener does for cotton.
In the Konig study, People wearing SkinSmart™ sleepwear vs cotton reported it was 58% smoother, 65% softer, and 88% cooler. So: clinically, dramatically better than cotton for skin comfort.
