A Closet Staple
"OZMA knows how to make the perfectly oversized button up shirt and has ruined me for all others. The organic poplin is crispy without being stiff and still drapes nicely. I can tell this one is going to be with me for many years."






Our classic button down, single breast pocket, menswear inspired. Slightly longer in the back, and hits at the hip. Designed in Organic Poplin, it's soft and so easy to wear.
Aya and Sylvia are both wearing size XS/S.
Our classic button down, single breast pocket, menswear inspired. Slightly longer in the back, and hits at the hip. Designed in Organic Poplin, it's soft and so easy to wear.
Aya and Sylvia are both wearing size XS/S.
| Size | Front Length | Chest | Sleeve Length |
|---|---|---|---|
| XS/S | 25.5 in | 44 in | 23 in |
| M/L | 26.5 in | 47.5 in | 24 in |
| XL/XXL | 27.5 in | 55 in | 26 in |
Need help finding your size? Email us hello@ozmaofcalifornia.com, we'd love to help!
| Letter Size | XXS | XS | XS | S | S | M | M | L | L | XL | XXL | 1X |
| Denim Size | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | -- |
| USA Size | 000 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| Chest | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 41.5 | 43.5 | 45.5 |
| Natural Waist | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31.5 | 33 | 34.5 | 36.5 | 38.5 |
| Hip | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 44.5 | 46.5 | 48.5 |
Textile: Organic Cotton Poplin — Composition: 100% Cotton
Certified Organic Textile
GOTS Certified Dyes
Dry Clean or Hand Wash Cold - Line Dry
Designed and Made in California.
Our cut and sew knits and wovens are made within a 10 mile radius of our Los Angeles studio. Working locally allows us to support the garment community we call home, maintain close oversight, and reduce transport emissions through shorter supply chains. All LA factories adhere to the FLA Fair Labor Standard Code of Conduct. We visit regularly to maintain standards and build these relationships.
Free shipping on domestic orders $250+. See Shipping & Return Policy






Our classic button down, single breast pocket, menswear inspired. Slightly longer in the back, and hits at the hip. Designed in Organic Poplin, it's soft and so easy to wear.
Aya and Sylvia are both wearing size XS/S.
Overall rating: 5.0 / 5 from 6 reviews.
Review topics: [].
"OZMA knows how to make the perfectly oversized button up shirt and has ruined me for all others. The organic poplin is crispy without being stiff and still drapes nicely. I can tell this one is going to be with me for many years."
"This is my fifth one. Yup fifth. I mix and match with the all day pant. I love this cotton for summer. The cut and fit are everything. These are on Re_peat in my closet."
"I’m so glad this is the color of summer. This is my second poplin Marcie and I wear them constantly, perfectly oversized, stellar quality"
"Incredibly breathable for hot summer days and very flattering. This shirt has become my daily go-to. Love it."
"Love this shirt so much! Ordering more!"
"Was hesitant because it's not an inexpensive shirt - but was SO happy with this purchase when it came in. Worth every penny. This is a perfect shade of butter yellow - well-made - I'll wear this every day."