Women's - Slacker Performance Blend (Bats)The Performance Slacker will help you to turn up turning it down considerably. This highwaisted, long legged sleep slack feels like you're sliding into fresh lemon meringue atop a unicorn's big fluffy tail. The Performance Blend is the lighter of our two fabric styles. The heavier being the Blanket Blend. They feature deep pockets and an adjustable elasticised waistband.