The cotton strap feels soft against my neck instead of scratchy like the nylon one I had before, and 18 inches is long enough to tuck the device into a pocket while I'm out. The clip holds tight too, no wobble when I walk.
Bought this so my kid would stop losing the Tamagotchi at school, and the 46cm length is just right for looping over a backpack strap. The cotton holds up fine after a few weeks of daily wear, no fraying yet.
The cotton strap feels soft against my neck even after wearing it all day, and the 46cm drop hits just right so the device rests at hip level instead of swinging around. My kid wears it to school daily and it hasn't frayed or stretched at all.