There was a time when we could all run around in Fred Flintstone footsie pajamas and feel completely at ease. For most of us, those days are long gone. But there are one-piece suits that make sense for adults. So drop your drawers, lose the shirt, and slip into the future of clothing.
The North Face Himalayan Suit ($999)

Best for: Climbing Ama Dablam
Serious mountaineers ditched seams a long time ago. Constructed with welded baffles and insulated with 800-fill goose down, The North Face鈥檚 seam-less聽 is built for the world鈥檚 most extreme environments.
Airblaster Freedom Suit ($319)

Best for: Powder Days
After the great ski suit disaster (a.k.a the 1990s), Airblaster revived the winter onesie with its signature . The Portland-based company expanded their one-piece options to include the Hoodless Ninja Suit, the Sumo Suit, and its celebrated outerwear garment, the . The Bright Tye Dye wins colorway of the year.聽
Patagonia GORE-TEX Kiting Suit ($699)

Best for: Kiteboarding Around Icebergs
Patagonia athletes push the limits of what鈥檚 possible. To accommodate this, the company鈥檚 design team developed the . Tested by , the one-piece is built with latex gaskets and a stowable hood.
Betabrand Suitsy ($340)

Best for: Commuting
The brainchild of San Francisco developer Jesse Herzog,聽聽is the world鈥檚 first business suit onesie. Machine washable, vented, and easily adjustable, the Suitsy offers class, convenience and comfort, according to Herzog. Technically, it鈥檚 a shirt connected to pants connected to a jacket. Theoretically, it鈥檚 a聽
Selk鈥檅ag Original ($159)

Best for: Napping
Don鈥檛 call it a onesie: Selk鈥檅ag bills itself as a sleep-wear system. The handy isn鈥檛 designed for hardcore cold-weather missions, but is a great option for lounging or falling asleep in your yard.
OnePiece Lillehammer ($169)

Best for: Christmas Morning
OnePiece owns the adult onesie market. Their are comfy, convenient, and, in a footsie pajama sort of way, stylish. They can be worn indoors and out. The many prints offered vary from jungle hide-and-seek (camo) to Fourth of July (American Dream).
Carhartt Duck Coverall Quilt-lined ($140)

Best for: Putting on Chains
An insulated is the gear you want for all dirty, cold, and wet jobs. This Coverall is made from tough cotton duck and a soft, quilted nylon interior, so you鈥檒l stay warm and dry.
Mons Royale Monsie ($260)

Best for: Running Around in Your Underwear
New Zealand鈥檚 Mons Royale is famous for its merino wool. While definitely not the company鈥檚 sexiest underwear, the is everything a full-body garment should be: comfy, warm, functional鈥攁nd resistant to body odors.
Spyder Performance GS ($550)

Best for: Keeping Pace with Julia Mancuso
Spandex and Lycra have been a staple of the alpine ski race crew since the 1968 Olympics. Since the stretchy fabric鈥檚 inception, it鈥檚 been used to make .