Our hammock pillows are made with durable, weather resistant Sunbrella® fabric. These pillows are the perfect accent for your hammock and you won't have to worry about rot, mildew or decay. Leave it out all summer long - it just won't fade. The polyester fiber filled pillow can be removed for easy laundering. Three hook and loop fastener straps attach the pillow to the hammock spreader bar keeping it in place and right where you need it.