The 2022 Badfish IRS features the Patented Wiki Rail Tail creating a clean release, improving rail bite and surfing performance. Unlike taxes, the IRS (Inflatable River Surfer) is all about fun. Since we introduced the IRS, it has become the “gateway board” of choice for many river surfers, with more people learning to river surf on the IRS than any other SUP on the market. The IRS is stable for beginners but won’t disappoint seasoned river shredders looking for an inflatable option.