LSI We've taken our classic LS Series tenders into the future with our new LSI boats featuring Achilles' revolutionary AriFirm™ Floors. These remarkable drop stitched inflatable floors are made with high quality Hypalon reinforced fabric supported by interior polyester threads. They are the ONLY drop stitched inflatable floors made with Hypalon®. When inflated they provide an unparalleled smooth, firm deck. In our LSI-88 and LSI-104 models, these amazing built in floors are supported by air keels for unsurpassed performance in an air floor inflatable boat. And all three LSI models have a wider bow design than their LS cousins for even more gear space. Needless to say, LSI boats are extremely lightweight and incredible easy to set up and store. Never before has such a level of convenience been accompanied by such superior quality. And no one else offers a rigid air floor made with tough, durable airtight Hypalon fabric.