For comfortable hours on your sunbed, there are suitable bolsters made by Fiam.
The cover of the Fiam bolsters is made of Textilene, an high-tech fabric, which is weatherproof and UV-resistant. Textilene is flexible and breathable, which is the reason why it offers a lot of comfort combined with the foam core of it. The modern textile is moreover easily cleaned.
The bolster for the sunbeds by the Italian manufacturer Fiam is simply fixed at the desired height of the sunbed with the rubber band and a click-closure.