Kim Kardashian puts every curve on display in skintight crop top and yoga leggings as she endures gruelling three-hour workout

Kim Kardashian isn't solely relying on wearing a waist trainer to keep her famous curves.

The 34-year-old is also dedicating her time to gruelling exercise routines.

She was spotted out near her home in West Hollywood on Friday afternoon after putting herself through a tiresome three-hour work out. More pics after the jump