Footed pajamas, onsies and union suits that have a rear drop seat, or butt flap.   Since 2005, Big Feet Pajama Co. has offered a drop-seat option on all adult footed onesie pajamas.
Flannel Adult Footed Pajamas in Red and Black Plaid Onesie for Men & Women

Flannel Adult Footed Pajamas in Red and Black Plaid Onesie for Men & Women

$65.99$49.99
Jersey Knit Adult Footed Pajamas in Turquoise

Jersey Knit Adult Footed Pajamas in Turquoise

$65.99$48.99
Purple Jersey Knit Onesie Footed Pajamas for Adults

Purple Jersey Knit Onesie Footed Pajamas for Adults

$65.99$48.99
Jersey Knit Adult Footed Pajamas in Red

Jersey Knit Adult Footed Pajamas in Red

$65.99$48.99
Pastel-Pink Jersey-Knit Onesie Footed Pajamas for Adults

Pastel-Pink Jersey-Knit Onesie Footed Pajamas for Adults

$65.99$48.99
Jersey-Knit Adult Onesie Footed Pajamas in Heather Gray

Jersey-Knit Adult Onesie Footed Pajamas in Heather Gray

$65.99$48.99
Navy-Blue Jersey-Knit Footed Onesie Pajamas for Men and Women

Navy-Blue Jersey-Knit Footed Onesie Pajamas for Men and Women

$65.99$48.99
Chocolate Brown w/ Hearts Micro-Polar Fleece Adult Footed Onesie Pajamas

Chocolate Brown w/ Hearts Micro-Polar Fleece Adult Footed Onesie Pajamas

$79.99$58.99
Camo Micro-Polar Fleece Adult Footed Onesie Pajamas in Green and Brown

Camo Micro-Polar Fleece Adult Footed Onesie Pajamas in Green and Brown

$79.99$58.99
Pink Camouflage Micro-Polar Fleece Onesie Footed Pajamas for Adults

Pink Camouflage Micro-Polar Fleece Onesie Footed Pajamas for Adults

$79.99$58.99
Pink Micro-Polar Fleece Onesie Footie Pajamas for Adults

Pink Micro-Polar Fleece Onesie Footie Pajamas for Adults

$75.99$56.99
Hunter-Green Micro-Polar Fleece Adult Footed Onesie Pajamas

Hunter-Green Micro-Polar Fleece Adult Footed Onesie Pajamas

$75.99$56.99
Black Micro-Polar Fleece Adult Footed Onesie Pajamas for Men & Women

Black Micro-Polar Fleece Adult Footed Onesie Pajamas for Men & Women

$75.99$56.99
Navy Blue Micro Polar Fleece Adult Footed Pajama Onesies

Navy Blue Micro Polar Fleece Adult Footed Pajama Onesies

$75.99$56.99
Red Micro-Polar Fleece Adult Footed Pajamas for Him, Her, or Couples

Red Micro-Polar Fleece Adult Footed Pajamas for Him, Her, or Couples

$75.99$56.99
Checkered Grey Flannel Onesie Footed Pajamas for Adults

Checkered Grey Flannel Onesie Footed Pajamas for Adults

$65.99$39.99
Flannel Adult Footed Pajamas in Pink and Yellow

Flannel Adult Footed Pajamas in Pink and Yellow

$65.99$30.99
Navy Blue & Green Tartan Plaid Flannel Adult Footed Pajamas

Navy Blue & Green Tartan Plaid Flannel Adult Footed Pajamas

$65.99$49.99
Red & Grey Plaid Footed Onesie Pajamas With Small Hearts

Red & Grey Plaid Footed Onesie Pajamas With Small Hearts

$65.99$49.99
Black & White Windowpane-Plaid Flannel Footed Onesie Pajamas for Adults

Black & White Windowpane-Plaid Flannel Footed Onesie Pajamas for Adults

$65.99$49.99
Hoodie Footed Red Plush Onesie Pajamas for Men & Women

Hoodie Footed Red Plush Onesie Pajamas for Men & Women

$85.99$59.99
Pink Plush Onesie Footed Pajamas With Hood for Adults

Pink Plush Onesie Footed Pajamas With Hood for Adults

$85.99$64.99
Navy-Blue Plush Hooded Footed Onesie Pajamas for Men & Women

Navy-Blue Plush Hooded Footed Onesie Pajamas for Men & Women

$85.99$64.99
Plush Adult Footed Pajamas With Hood in Leopard Print

Plush Adult Footed Pajamas With Hood in Leopard Print

$89.99$68.99
Men's & Women's Red Unisex Union Suit With Funny Bum Flap "NO ENTRY," XS–XXL

Men's & Women's Red Unisex Union Suit With Funny Bum Flap "NO ENTRY," XS–XXL

$65.99$49.99
Men's & Women's Red Unisex Union Suit With Funny Butt Flap "DANGER — BLASTING AREA," XS–XXL

Men's & Women's Red Unisex Union Suit With Funny Butt Flap "DANGER — BLASTING AREA," XS–XXL

$65.99$49.99
Red Unisex Union Suit With Funny Butt Flap "Wasn't Me" Skunk for Adults, XS–XXL

Red Unisex Union Suit With Funny Butt Flap "Wasn't Me" Skunk for Adults, XS–XXL

$65.99$49.99
Winter Fun Christmas Adult Onesie Pajamas With Hood for Men & Women

Winter Fun Christmas Adult Onesie Pajamas With Hood for Men & Women

$89.99$68.99
Gift Certificate Digital eGift Card $25 - $100

Gift Certificate Digital eGift Card $25 - $100

$0.00
Red & Black Buffalo Plaid Fleece Onesie Pajamas With Feet. Hood, & Classic Button Front

Red & Black Buffalo Plaid Fleece Onesie Pajamas With Feet. Hood, & Classic Button Front

$85.99$44.00
Red & Black Buffalo Plaid Onesie Pajamas With Hood, Footless

Red & Black Buffalo Plaid Onesie Pajamas With Hood, Footless

$85.99$64.99
Navy Cotton Union Suit - Unisex - Footless - Men & Women

Navy Cotton Union Suit - Unisex - Footless - Men & Women

$65.99$48.99
Gray Cotton Union Suit - Unisex - Footless - Men & Women

Gray Cotton Union Suit - Unisex - Footless - Men & Women

$65.99$48.99
Red Cotton Union Suit - Unisex - Footless - Men & Women

Red Cotton Union Suit - Unisex - Footless - Men & Women

$65.99$48.99
Hoodie Footed Onesie Buffalo Plaid Fleece Pajamas for Men & Women

Hoodie Footed Onesie Buffalo Plaid Fleece Pajamas for Men & Women

$85.99$64.99
Camouflage Hoodie Onesie Pajamas With Hood, Adults, Footless

Camouflage Hoodie Onesie Pajamas With Hood, Adults, Footless

$85.99$64.99
Camouflage Hoodie Footed Onesie Pajamas With Hood

Camouflage Hoodie Footed Onesie Pajamas With Hood

$85.99$64.99

You and a loved one can match in your colorful footie pajamas with bum flap, or select a festive pair that has a whimsical sign on the derriere. For instance, walk into a room with a construction-style sign on your bum that reads “Danger – Blasting Area – Keep Clear” and get ready for the laughter. A Velcro closure ensures that your footie pajamas for adults with butt flap will stay in place and secure.

Sizes range from XS to XXL for any body shape. Union-suit onesies for adults with bum flap can also be worn as thermal underwear and are made of 100% jersey-knit cotton. These are great for keeping warm while ice-skating or participating in other outdoor activities. Give a gift of adult drop-seat pajamas, and watch how soon these jammies turn into favorite sleeping attire.