The only press that fits inside the classic 32 oz. widemouth Nalgene bottle. Weighing only 2.4 oz., the Press-Bot is perfect for backpacking- with the tight seals, you won't have to worry about it leaking in your backpack. A stainless steel Microfilter helps you get a clean brew every time. Easy-pour spout. Makes a delicious gourmet coffee or tea!