Button closure

SOFT AND STRETCHY FABRIC：This one piece thermal union suit is designed to respond to temperature changes in your environment to keep you comfortable all day long. men’s thermal underwear onesie are made using a soft blend of 80% polyester 10% cotton 10% spandex that allows your skin to naturally breathe and keep you warm no matter if you are indoors or outdoors.

BUTTON-UP CLOSURE DESIGN: The one-piece pajamas thermal featuring full-button placket and crew neckline with tagless label. Botton-up front to easily put on and take off. Close fit along torso and connections to extremities- better movement allowed.

FUNCTIONAL AND TOASTY: This well made one-piece long johns are super cozy to sleep in and great as a first base layer or only layer for cold weathers. The sleepwear has full-button placket and button back opening for convenient use. You can put on these thermals for that extra protection from the cold when lounging around the house after work and on weekends.

A MUST HAVE FOR COLD WINTER: These lightweight wicking one piece thermals underwear can be the perfect under layer to make you stay warm when you work outside in cold conditions, go for biking, mountains, snowboarding or other winter activities, Great for using as PJ's loungewear when you're at home after work and on weekendson for those cold nights.

IDEAL FESTIVAL BIRTHDAY GIFT: This long pj's set is a perfect gift for your husband, father, grandpa, son or friends on Birthday, Christmas Day, New Year or other Festivals or Anniversaries. cute for a humorous family photo, ideal santa undergarment for warmth.

MHSLKER Men's One Piece Pajama Thermal Underwear Union Suits Long Sleeve Button Down Henley Adult Onesie Base Layer