Discover the perfect blend of comfort and style with the Double Air Hat! Ideal for adults, this cozy hat comes in three sizes, fitting head circumferences of 52-54 cm, 55-57 cm, and 58-60 cm (0.57-0.59, 0.6-0.62, 0.63-0.66 yards), ensuring a snug and comfortable fit for everyone. Crafted with precision and care, the hat is designed to be knitted in the round using 3.5 mm (US size 4) and 4.0 mm (US size 6) needles, creating a beautifully even stockinette stitch pattern. Whether you’re a seasoned knitter or a beginner, the Double Air Hat is a delightful project that results in a stylish, wearable piece perfect for any wardrobe. Get your needles ready and embark on this enjoyable knitting journey!