Smart, Adjustable Design: These headgear straps are adjustable to suit various head sizes, helping ensure a secure fit with minimal air leaks. Designed for reliable performance, they maintain strength and stability during use. Superior Comfort: Made from soft, stretchy, and skin-friendly fabric, these headgear straps offer enhanced comfort. The smooth texture helps reduce irritation, making them suitable for extended wear and comfortable in multiple sleeping positions. Compatible with F20: Specifically designed to fit F20 models, these headgear straps provide a secure fit for uninterrupted sleep. A practical replacement option for existing head straps. Premium Quality and Durability: The headgear can be easily cleaned under running water, then rinsed and air-dried. Resistant to fraying, curling, shedding, delamination, and other forms of degradation to help maintain long-term quality. Color: Gray + Blue Material: Polyester Package Contents: 2 x CPAP Headgear Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.