3D-fuel offers 3 types of premium PLA
Standard PLA; or Polylactic Acid, is among the most popular 3D printing materials in the world because it is easy to print and strong. This is what most people are referring to when they say "PLA."
Workday PLA; filament is stronger and more heat resistant than Standard PLA and even stronger than ABS, especially if you anneal it after printing.
Pro PLA; has higher impact strength than ABS and Standard PLA with a heat resistance rivaling that of ABS! It is also slightly more flexible than Workday PLA.