Temperature Regulating
Breathes to cool you when it's warm, insulates when it's cool - comfortable in any climate
Merino Wool Tees - naturally odor-resistant, temperature-regulating, cut to your measurements · Perfect Fit Guarantee
Shop tees
Merino Wool
★★★★★
500,000+ people have created their custom fit
The T-Shirt You Can Wear For Days.
Ultra-fine merino wool that regulates your temperature, wicks moisture, and naturally resists odor - so one tee carries you from the flight to dinner without a second thought. Then cut to your exact measurements, because a great fabric deserves a great fit.
Perfect fit guarantee
Your custom fit is included, free - and we'll remake it until it's right.
Shop Merino Tees →
Temperature-regulating in any climate
Naturally odor-resistant, wear after wear
Ultra-fine and soft - never itchy
Cut to your exact measurements
As seen in
Why Sene merino
Merino Does The Work.
We Made It Fit You.
Cotton holds sweat and wrinkles. Synthetic performance wear is plastic that stinks by lunch. Merino is nature's technical fabric - it regulates temperature, wicks moisture, blocks UV, and resists odor on its own, so one tee goes days between washes. Every other label sells it off-the-rack in S, M, L. We spin ours ultra-fine, then cut each tee to your exact measurements - so it performs like merino and fits like it was made for you. Because it was.
What ultra-fine merino does
Odor-Resistant
Merino naturally neutralizes odor, so you can wear it for days and wash it far less
Moisture-Wicking
Pulls sweat off your skin and releases it, staying dry and fresh on the move
Ultra-Fine & Soft
Spun fine enough to feel like your favorite cotton tee - breathable, never itchy
The best t-shirt you'll pack
Engineered By Nature. Tailored To You.
01 - The fabric
Nature's Technical Fabric.
Merino evolved to keep an animal comfortable through heat and cold, rain and shine - and it does the same for you. Ultra-fine fibers regulate temperature, wick moisture, block UV, and resist odor without a drop of synthetic treatment. Performance you can feel, spun soft enough to live in.
- Temperature-regulating in heat and cold
- Moisture-wicking, breathable, natural UV protection
- A natural fiber, not plastic performance wear
02 - The travel tee
Pack Less. Wear More.
Because merino resists odor and dries fast, one tee does the work of three. Wear it on the plane, again to dinner, and once more the next day - it stays fresh. Rinse it in a sink, hang it overnight, and you've packed a week into a carry-on.
- Wear it days in a row, still fresh
- Dries fast, resists wrinkles
- The one tee that earns its spot in the bag
03 - The fit
Cut To You, Not To S-M-L.
Here is what no other merino brand does. Take a 60-second SmartFit quiz and our AI builds your fit profile from your proportions - then we make your tee to it. No gapping collar, no boxy drape, no sleeves in the wrong place. The best fabric in the world, finally cut to fit only you.
- 60-second SmartFit quiz, no tailor needed
- Crew and V-neck, four natural colorways
- Custom fit included free on every tee
The collection
Two Necklines. One Perfect Tee.
Both cut to your exact measurements in four natural colorways. Your custom fit is included, free.
The Perfect Fit Guarantee
Custom Fit, Zero Risk.
Every tee is made to order to your measurements. If the fit isn't perfect within 30 days, we'll alter it or remake a brand-new one from scratch, free - until it's exactly right.
Sene in the wild
The Tee People Reach For First.
★★★★★
"The fit is incredible - it drapes exactly how it should, and it's forgiving if you go up or down a few lbs. It's the first thing I reach for now."
Christopher K · customer since Oct 2021
★★★★★
"These are my GO TO. They work great on their own or dressed up for dinner, and I frequently get praise on my attire when wearing them. A half dozen of my favorite colors in the closet."
Chris W · customer since July 2021
★★★★★
"Start to finish, Sene has been amazing. Every interaction was quick, friendly, professional, and all promises kept. The fit is genuinely dialed in."
James P · customer since Aug 2021
Questions? We've Got Answers.
Does merino wool itch? +
No. Itch comes from thick, coarse wool fibers. We use ultra-fine merino spun soft enough to feel like your favorite cotton tee against the skin - breathable and smooth, not scratchy.
How many days can I really wear it? +
Merino naturally resists odor, so most people comfortably wear it several days in a row between washes - which is exactly why it's the perfect travel tee. Air it out overnight and it's ready to go again.
Isn't wool too warm for summer? +
Not fine merino. It's temperature-regulating: it breathes and wicks moisture to keep you cool in the heat, and insulates when it's cool. That range is what makes one tee work year-round and in any climate.
How does the custom fit work? +
Take a 60-second SmartFit quiz and our AI builds your fit profile from your proportions - no measuring tape or tailor required. Your tee is then made to that fit, in your choice of crew or V-neck.
How do I care for it? +
Machine wash cold on gentle and lay flat to dry. Because merino resists odor, you'll wash it far less often than a cotton tee - which keeps it looking new for longer.
What if the fit isn't right? +
You're covered by the Perfect Fit Guarantee: within 30 days we'll alter it or remake a brand-new tee from scratch, free, until the fit is exactly right.
Merino wool · tailored to you
The Last T-Shirt
You'll Want To Pack.
Build your fit in 60 seconds and get ultra-fine merino cut to your measurements - temperature-regulating, odor-resistant, and backed by the Perfect Fit Guarantee.
Shop Merino Tees →$98 · custom fit included free · Made to order · Perfect Fit Guarantee