1) thermal underwear 2) won't hold odors 3) extremely soft 4) won't itch or irritate skin 5) natural stretch modal fashion underwear1) thermal underwear2) won't hold odors like synthetics3) extremely soft4) won't itch or irritate skin5) natural stretch for a comfortable fit1.Material: 100% merino wool 50%merino wool 50%polyester 50%merino wool 50% acrylic 30% merino wool 70% polyester 30% merino ...