Olivia Wilde's Must-Have Gym Companion Olivia Wilde always carries her favorite water bottle to the gym. If you purchase a product through our website, we may receive a commission. Olivia Wilde's workout essential is the YETI Rambler 36 oz Bottle. The Yeti Rambler is a popular stainless steel bottle with a chug cap and handle. The dishwasher-safe bottle is available in 14 different colors and makes a perfect gift. Customers claim that the pricey Yeti Rambler is worth every penny.