His and her underwear goes a step further.

There are times when lingerie/underwear brands promote their brand by working towards a good charity cause, donating proceeds from the sales of their garments. Heavily featured in lingerie brands is breast cancer. Under wear brand BJÖRN BORG is collaborating with MTV Staying Alive Foundation to fight against HIV.

The underwear (mens and womens) has a limited edition elastic waistband with the words "GET IT ON". What caught my eye was their tandem underwear, not only used at a promotion piece but you can actually buy it. 

My mind boggles with how the fits went for this product!