Minoura Safe-T Net 2
Protects bike frame from your sweat
You cannot expect to get wind to cool down your body, so you will get a lot of sweat during indoor training. Safe-T Net 2 is a frame protection device to prevent adhering your salty sweat to your bike frame and head parts.
Sweat contains saline matter which should give damage to metal material. Once sweat splotches the frame or head parts, they will get rust and will shorten your bike life.
Even though you wipe sweat with towel, you would accidentally forget about sweat if you have concentrated on training.