Pointe shoe unfit to wear in situations other than informal practice or rehearsal. Under moderate usage, a pair of pointe shoes will typically last through ten to twenty hours of wear. For dance students, this often translates into weeks or months of serviceable use from a pair of pointe shoes. Professional dancers typically wear out pointe shoes much more quickly; a new pair may wear out in a single performance. As a result, most professional ballet companies provide shoe allowances for their dancers to defray the cost of frequent shoe replacement. The lifetime of a pointe shoe depends on many factors, including:
Pointe shoe custom-made lasts that replicate the shapes of their own feet; these may be supplied to a pointe shoe manufacturer for the purpose of manufacturing custom shoes. Dancers typically "break in" new pointe shoes to reduce or eliminate the discomfort they commonly cause, usually by performing releves and eleves that flex, and thus soften, the boxes and shanks in a natural manner. Various other methods have also been employed for breaking in pointe shoes, including deforming them with hands or against hard surfaces, striking them on hard surfaces, and moistening or heating the boxes to soften the glues, but these methods