Headphones that come with lifetime warranty are rare. Also rare is to buy headphones desiged in the 1980s. With the Koss PortaPro, you get both the vintage retro design, and headphones that'll last for ages.
Note, this is for the black/silver colour, previously listed at $99
The ultra portable on-ear headphones
Comfort zone setting on temporal pad for comfortable secure fit
The ultimate active headphones with a collapsible headband design for protective storage
Dynamic element for extended frequency response
Oxygen-free copper voice coils deliver deep bass and signal clarity