They’re comfortable, they’re practical, and they’ve stood the test of time. We’re talking about FlapJacks, our modern take on the classic long john! Wildly popular in their day (oh, 150 years or so ago) it’s easy to see why this unisex style is making a big comeback! Stretchy, comfy and warm, our FlapJacks have a button-down front, a contrasting flat-lock stitch around the seams, and most importantly, the ever-so-handy trap door at the “bear bottom” for that midnight run to the water closet (Adult Sizes Only)! Made from 100% cotton/1 x 1 ribbed knit, FlapJacks are hailed by young and old timers alike and come in a range of sizes perfect for the whole “fam damily”. Sizes: XS, S, M, L, XL 

All new stock infant, kids, and youth Flap Jacks do not open.

Flap Jacks  Whale Tale End - Unisex Adult
$54.99

Made from 100% cotton/1 x 1 ribbed knit and featuring a "Don't Moose With Me" trap door, Flap Jac..

Flap Jacks Blue Classic Moose - Unisex Adult
$54.99

Suit up for a great night's sleep or an evening of fun with the family with our "Don't Moose With..

Flap Jacks Brown Unisex Adult (Wanna Moose Around)
$20.62 $54.99

If you think the long john is long gone, think again! We’ve revived and remodeled this comfortabl..

Flap Jacks Camo Deer Green "Buck Naked" Unisex Adult
$54.99

Camouflage that makes you stand out instead of blending in! Our adult onesie Flap Jack PJ's are p..

Flap Jacks Camo Deer Green "Deeriaire" Unisex Adult
$54.99

Camouflage that makes you stand out instead of blending in! Our adult onesie Flap Jack PJ's are p..

Flap Jacks Camo Deer Pink Unisex Adult
$54.99

Camouflage that makes you stand out instead of blending in! Oh, and it's pink, too. Our unisex ad..

Flap Jacks Emergency Exit Eh? Unisex Adult
$54.99

When it comes to Canadians, sentences are never complete without our signature Eh! That's why we'..

Flap Jacks I Don't Horse Around
$54.99

If you think the long john is long gone, think again! We’ve revived and remodeled this comfortabl..

Flap Jacks Moose Hockey Pink Adult
$54.99

If you think the long john is long gone, think again! These adult onesie pajamas are great, reviv..

Flap Jacks Moose Hockey Red Adult
$54.99

Every season is hockey season in Canada. This is why we've created the most comfortable and warm ..

Flap Jacks No Peeking - Unisex Adult
$54.99

Don't blend in with the crowd this winter season! Our unisex adult onesie Flap Jack PJ's are perf..

Flap Jacks Pink Adult (Wanna Moose Around)
$20.62 $54.99

If you think the long john is long gone, think again! We’ve revived and remodeled this comfortabl..

Flap Jacks Pink Classic Moose
$54.99

If you think the long john is long gone, think again! We’ve revived and remodeled this comfortabl..

Flap Jacks Plaid Bear Cheeks Unisex Adult
$54.99

There's something about our plaid onesie PJ's that just makes you want to sit back, relax and enj..

Flap Jacks Red Unisex Adult
$54.99

Red is the color of love and love is all you'll be receiving when you're wearing our perfect unis..

Flap Jacks Special Delivery
$54.99

It's beginning to look a lot like Christmas! We've seen the "ugly" Christmas sweaters, we've seen..

Flap Jacks Tail End Unisex Adult
$27.50 $54.99

If you think the long john is long gone, think again! These adult onesie pajamas are great, reviv..