Schwalbe SV21AP Air Plus

"The Schwalbe AIR PLUS bicycle inner tube Nr. 21AP is the ideal choice for anyone looking for a reliable and durable tube for their 27.5" Inch bicycle tires are (ETRTO 40/62-584). Thanks to its increased wall thickness, the inner tube holds the air significantly longer, which means that re-inflation is required less often. This not only saves time, but also ensures a consistently pleasant riding experience without frequent interruptions."
"Another advantage of the Schwalbe AIR PLUS is its above-average puncture protection. The robust construction of the inner tube minimizes the risk of punctures and other damage, which is particularly advantageous on longer tours or in rough terrain. This allows you to fully concentrate on your ride without having to worry about any sudden breakdowns."
"Schwalbe, known for its high-quality bicycle components, offers with the AIR PLUS bicycle tube a solution that is suitable for everyday use as well as for demanding tours. Rely on the quality and innovation of Schwalbe to make your rides safer and more enjoyable."