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Your cart is empty.WTB NanoAir TPU Tubes give you lighter spares and more room in your bag. Made from Thermoplastic Polyurethane, each tube is 60 % lighter than a standard butyl tube, so your wheels spin up faster and climbs feel easier. Packed size is only one-third of a normal tube. Carry two NanoAir tubes where one old tube used to fit, or use the extra space for snacks, tools, or an extra layer. TPU is tougher than butyl. The multi-layer lay-up resists pinch flats and thorn punctures. If you do pick up a hole, two peel-and-stick glueless TPU patches are included for a quick repair—no glue, no waiting. A 48 mm Presta valve with a removable core makes inflation simple and lets you add sealant when needed. The length fits most modern road, gravel, and mountain bike rims. Choose NanoAir to ride light, pack small, and stay prepared on every road, trail, or gravel adventure. Sold as a single tube with two patches.