Once you have that measurement, match it to the backpack manufacturer's sizing chart to purchase the right size pack. While most hiking backpacks aren't waterproof, most come with waterproof rain ...

Until this week, hiking backpacks made specifically for plus ... overnight packs are offered in S/M and M/L sizes (there's a size chart available to find the best fit for you).

If you own as many backpacks as we do ... this is the broad size guide we recommend: When it comes to large bags, especially those meant for hiking, you want bags designed for your specific ...