The New Hydro Flask Slim Cooler Cup White & Purple 12 oz Wind Special Edition is an insulated sleeve carrier made of stainless steel. It features a double wall design with vacuum walls to keep drinks cold for longer periods. This BPA-free water bottle is dishwasher safe, perfect for outdoor activities like camping and hiking. The sleek design in white color with purple accents makes it a stylish choice for on-the-go hydration.