CPO Button Down

A shirt that carries the weight of work... structured in form, softened in wear.

Inspired by classic naval overshirts once worn by Chief Petty Officers, the CPO Button Down balances structure, versatility, and everyday ease. Crafted from lightweight heathered cotton twill with subtle multicolored flecks throughout, it brings depth, texture, and comfort to daily wear. Designed for layering and built to soften beautifully over time, it is the kind of piece that only gets better the more you wear it.

Lightweight heathered cotton twill with multicolored flecks

Inspired by vintage military tailoring

Button-front with dual chest pockets for utility

Built to last, softening beautifully with wear

$225.00 USD

Tax not included.

Shipping calculated at checkout.

Size	US Size	Bust (in)	Waist (in)	Hips (in)
XS	0-2	31-33	24-26	34-36
S	4-6	33-35	26-28	36-38
M	8-10	35-37	28-30	38-40
L	12-14	37-40	30-33	40-43
XL	16-18	40-43	33-36	43-46

Size	US Size	Chest (in)	Waist (in)	Hips (in)
XS	34	32-34	26-28	33-35
S	36	35-37	29-31	36-38
M	38-40	38-40	32-34	39-41
L	42-44	41-43	35-37	42-44
XL	46-48	44-47	38-41	45-47

Size

XS

S

M

L

XL

Color: Bright White

Quantity

In stock - Ready to be shipped

Estimated delivery between June 10 and June 12. Order within .

The CPO Button Down draws from vintage military overshirts once worn by Chief Petty Officers, reimagined through a lighter and more refined lens. Crafted from lightweight heathered twill with subtle flecks of color woven throughout, it softens naturally over time while bringing depth and character to the fabric.

A classic button front and dual chest pockets balance utility and ease, making it equally suited for layering or wearing on its own. Layer it over the Dionysus Modal Dress, the Le Mans Racerback Tank, or the Church Crop Tee for an elevated yet comfortable look. As temperatures cool, wear it beneath the Grove Sweatshirt or pair it with the Bleecker Sweatpant for effortless everyday wear.

100% Cotton Twill

Durable and weighty, the cotton twill offers structure that holds its form, softening with wear into a lived-in feel.

Machine wash cold, gentle cycle — style this good shouldn’t require effort.
Avoid bleach — the fabric has all the charm it needs.
Air dry flat to preserve the fabric’s natural structure and lasting quality.
A light iron if you like — but it’s designed to wear beautifully without.

Every order leaves our studio with care, packed and shipped Monday through Friday (never on holidays, when we all slow down). Once you place your order, we’ll have it on its way within 2–5 business days.

If something isn’t quite right, we accept returns or exchanges on unworn pieces, tags still attached, within 30 days of purchase. Refunds can be made to your original payment method, or as a gift card if you’d prefer store credit.

A note on Final Sale pieces: those are treasures meant to stay with you, so they can’t be returned or exchanged.

Still unsure or need a hand? Write to us at hello@heirloomamalgam.com ... it’s Amy and Scott on the other side, and we’ll help.

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