Gain flings! laundry detergent pacs are packed with 50% more scent than Gain liquid laundry detergent. Armed with the stain-fighting power of Oxi and Febreze, they give you nothing but great, clean, amazing-smelling laundry. Use with any laundry set-up, because Gain flings! Pacs dissolve in both hot and cold water and are HE compatible.nnGain's refreshing Original Scent infuses your clothes with the fragrance of the green, clean, airy outdoors, so you're always just one quick sniff away from the most invigorating scent experience known to humankind.