A capped swap is an interest rate swap with an interest rate cap option where the floating rate of the swap is capped at a certain level while a floored swap is an interest rate swap with a floor option where the floating rate of the swap is floored at a certain level. Capped swaps or floored swaps limit the risk of the floating rate payer or receiver to adverse movements in interest rates. A capped swap can be decomposed into a swap and a cap whereas a floored swap can be decomposed into a swap and a floor.

https://ia801402.us.archive.org/10/items/ir-capped-swap-31/IrCappedSwap-31.pdf