the layer your hat has been missing.
a washable, skin-first liner that slips into any cap, so you can live & sweat without paying for it.
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the hat comes off, and your skin pays for it. sweat, friction, buildup, pressed against your forehead through every workout, every walk, every summer.
hats were never designed with skin in mind.
so we designed the layer that should have always been there.
how it works
slips in
seconds. no adhesive, no snaps, no modification to your hat.
full coverage
the whole crown, not just a sweatband.
washes
pull it out, wash it, put it back. as many times as you like.
works in the hats you already own and love.
the fabric
spun with SMARTCEL™, a cellulose fiber with zinc oxide embedded in the fiber itself, not coated on top.
- antibacterial fabric, independently tested against odor-causing bacteria
- fiber tested to UPF 50+
- made with OEKO-TEX® standard 100 certified fiber, class i (the standard used for baby articles)
- retains its zinc through 100+ washes
- 100% biodegradable fiber
soft enough for eczema-prone skin.
engineered for sweat, sun, and real life.
why sāno
from the latin mens sana in corpore sano. a healthy mind in a healthy body.
the oldest idea in wellness, applied to the one place no one thought to look.