Complex sentence: Shoes, being more sturdily constructed than most other types of clothing, will last longer after being abandoned outdoors--vleather shoes, for instance, are estimated to last for 25-40 years outside.
Split into simpler sentences: Shoes, being more sturdily constructed than most other types of clothing, will last longer after being abandoned outdoors. Leather shoes, for instance, are estimated to last for 25-40 years outside.