For badminton rackets, the best material is typically graphite composite or carbon fiber. These materials are strong, very light, and stiff, which helps generate faster swings, better control, and more power with less effort. High-end rackets may also use materials such as nanotube-infused carbon, titanium, or boron for added strength and durability. Aluminum and steel rackets are cheaper, but they are heavier and usually perform less well for serious players.
For shuttlecocks, the best material depends on the type of play. For professional and tournament badminton, feather shuttlecocks made from goose feathers are considered the best. They offer the most accurate flight, best speed control, and most natural feel in play. However, they are less durable and more expensive. For practice, recreational play, or outdoor use, nylon or plastic shuttlecocks are often better because they last longer, cost less, and withstand rougher conditions. The skirt is usually made of nylon or synthetic materials, while the base is typically cork or synthetic cork.
In short, the best material for rackets is graphite or carbon fiber, and the best material for shuttlecocks in competitive play is goose feathers with a cork base. For durability and affordability, plastic shuttlecocks are a practical choice.