Japanese Underwear - Warm Pink Hadajuban Top and Bottom Set - Unused

How about wearing this warm pink肌襦袢 (undergarment) set during cold weather?
It seems comfortable for coming-of-age ceremonies and formal kimono (留袖) due to its stretchy fabric.

There is a stain on the ribbon at the waist, but no other dirt or yellowing.

Thank you for your understanding of personal storage. No smokers or pets in the household.
Will be shipped folded.

Thank you for looking.