Buffalo Plaid Adult Onesie

5.0
Rated 5.0 out of 5 stars
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Buffalo Plaid Trapdoor Onesie - Jersey Knit A Canadian classic — cozy, cheeky, and made for memory-making.Our Buffalo Plaid Trapdoor Onesie is the ... Read More Read More

Buffalo Plaid Trapdoor Onesie - Jersey Knit

A Canadian classic — cozy, cheeky, and made for memory-making.
Our Buffalo Plaid Trapdoor Onesie is the ultimate cabin essential, designed for fireside laughs, family photos, and long winter mornings. Crafted from soft, breathable 100% organic cotton, it’s as durable as it is comfy.

Featuring the iconic red-and-black buffalo check and our signature “Moose Caboose” trapdoor detail, this onesie brings a playful twist to timeless tradition. Snug cuffs, a full-body fit, and a touch of stretch make it perfect for everything from Christmas Eve cocoa to lazy Sunday lounging.

Details:

  • 100% GOTS Certified Organic Cotton
  • Classic red-and-black buffalo plaid
  • Functional trapdoor with “Moose Caboose” print
  • Soft, breathable fabric with gentle stretch
  • Designed in Canada for cozy, memory-filled moments
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$35.00 CAD
$70.00
$35.00 CAD
50% OFF
Size
Size
1 Colours
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Enjoy hassle-free returns within 30 days.

Other Styles in This Collection

Made with Heart

Every print starts with a spark — a sketch inspired by the woods, the laughter echoing through the cabin, the smell of pine and pancakes. We don’t chase trends; we design stories you can wear. Each pattern is created in-house by our family, for real families.

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Rooted in Family Tradition


Millie + Moose began in a Canadian family workshop — where bedtime stories met fabric and tradition met design. What started as small-batch pajamas for gift shops has grown into something we never expected: a brand that connects thousands of families across Canada through matching moments.

Comfort You Can Feel Good About

We use GOTS certified organic cotton and thoughtful fabrics because comfort should feel good in every sense. Soft on skin, gentle on the planet, and safe for the little dreamers who live in these PJs.

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Three young girls in red and black plaid dresses sitting next to a vehicle.

FAQ's

Got questions about our PJs? You’re in the right place — we’ve gathered all the answers families ask most, so you can shop cozy with confidence.”

Where Millie + Moose is Made

At Millie + Moose, every pair of PJs starts right here in Vancouver, BC — dreamed up by our family for yours. We partner with certified, ethical factories in across the world to bring those designs to life. Our team visits partner manufacturers at least four times a year to make sure every stitch meets our standards for softness, safety, and care. Because cozy should always feel good — inside and out.

About Our Fabrics

How to Care for Your PJ's

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What our customers say

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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1 review
  • KS
    Kate S.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    34 minutes ago
    Classic!

    This is our go to camping PJ! It might be tmi but the trapdoor is quite convenient on a chilly night lol. We always snap a fun photo of the crew in their matching buffalo plaid!

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Care

Life’s messy — laundry shouldn’t be. Machine wash cold with like colors, skip the harsh bleach, and tumble dry low. Remove while warm for that just-right softness, and iron if needed.

Free Shipping

Spend $99 or more and we’ll cover the shipping — a little thank-you from our family to yours.

Your order will ship within 24 hours - Monday to Friday.

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