Perfect T-shirt
"Hiking, sailing, casual — perfect T-shirt. A worthy successor to the 24 Hour Collection."
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Making clothing can be a dirty business, but we strive to keep it clean. Our line is crafted for quality and long-term performance. And we limit what we make: small-batch production ensures every garment is built to the highest standards and finds a loving home. Our approach minimizes landfill waste and uses less energy and water. We know it’s disappointing when a style you love is out of stock, but we appreciate your joining us in our pursuit of the highest environmental standards and carbon neutral impact.
| Size | Chest | Waist | Neck | Sleeve Length | Inseam |
| S | 36-38 | 29-31 | 14-14 1/2 | 32-33 | 30-31 |
| M | 39-41 | 32-34 | 15-15 1/2 | 33-34 | 31-32 |
| L | 42-44 | 34-37 | 16-16 1/2 | 33-34 | 31-32 |
| XL | 45-47 | 38-40 | 17-17 1/2 | 35-36 | 32-33 |
| XXL | 48-50 | 42-44 | 18-18 1/2 | 36-36 1/2 | 32-33 |
Next to Skin:Â Your second layer of skin, hugs the body tight for optimal layering.
Athletic:Â Snug fit, this layer fits close to the body for a contoured, slim silhouette.
Standard:Â Not too snug and not too loose, this layer is right in the middle for everyday use.
Relaxed:Â Loose fit for comfort and extra layering underneath.
Sleeve:Â With arm slightly bent, measure from the center back of your neck (at your spine) to the elbow and down to your wrist.
Bust/Chest:Â Measure full circumference of the chest at the widest point, under the arms.
Waist: Measure full circumference of the waist at the smallest point.
Hips:Â Measure full circumference of the hips at the widest point.
Inseam:Â Place measuring tape at crotch and measure to ankle.
For any sizing, styling, or general inquiries, please contact us.
Did you love the 24 Hour Collection? This is its future.
Did you love the 24 Hour Collection? This is its future.
Composition: 100% Merino Wool
Weight(s): 165Â gsm
Micron gauge: 18.4μm
Our Naturalist fabric is 100% merino with a performance finish. A proprietary steaming process gives the material a cooler feel against the skin, making it ideal for a wide range of climates. Additionally, our new prewash process helps reduce pilling, increase fabric stability, and minimize twisting—ensuring long-lasting comfort and durability.
Overall rating: 5.0 / 5 from 22 reviews.
Review topics: [].
"Hiking, sailing, casual — perfect T-shirt. A worthy successor to the 24 Hour Collection."
— Jonathan (5/5)
"Great fit, nice weight, super cozy"
— Douglas (5/5)
"Ibex has it going on, always quality and never disappoints. What can you wear year round and feel comfortable matter what the climate?"
— Rita (5/5)
"Super soft, great quality"
— Douglas (5/5)
"Purchase one of these for my husband every Christmas. It’s a tradition. They don’t wear out, he simply has more colors to choose from. He wears them all year here in Santa Cruz."
— Jennifer C. (5/5)
"Great T-Shirt that's very comfortable, soft and doesn't pick up odours"
— Richard L. (5/5)
"Super soft feel, great moisture wicking"
— Gerald L. (5/5)
"Exactly what I expected, larger selection of colors would be nice. Good wool base layer ."
— Eric P. (5/5)
"Comfy and warm when wet"
— Mark B. (5/5)
"Horrible. Small Hole after first washing."
— Richard P. (5/5)