Stay hydrated in style with our 40oz stainless steel tumbler. Crafted from durable 18/8 stainless steel, it features double-walled vacuum insulation to keep drinks cold for 24 hours or hot for 12. The built-in handle and leak-proof lid offer easy portability, while the reusable straw and slim base fit most car cup holders. With a wide-mouth opening for easy refilling and dishwasher-safe convenience, its perfect for work, the gym, or travel. A practical and sustainable gift for any occasion.