Gain Flings Laundry detergent pacs in Original Scent. Detergent plus Oxi and Febreze, three big things in one fling. Everything you love about Gain is even better and smaller, with the most Gain scent, the stain-fighting power of Oxi and the odor-fighting freshness of Febreze. Gain Original scent laundry detergent will freshen every fiber, so your nose and clothes will thank you. Laundry detergent that smells so great and is so simple to use, it makes doing laundry almost exciting. Take the great scent of Gain laundry detergent all around your house with products made for a great clean and an even greater scent.