India, Dec. 25 -- It's time to upgrade your old hiking and camping gear, and during Amazon's major post-Christmas sale you can score high-quality outdoor essentials starting as low as $4. Whether you're in search of a larger tent, a cushiony sleeping pad, or more comfortable hiking boots, Amazon's virtual shelves are filled with incredible deals on everything you need for winter adventures, up to 70 percent off.

We've spent years testing the best hiking and camping gear out there, and some of our favorite items are now on sale. From the do-it-all The North Face Jester Everyday Laptop Backpack to our favorite fleece-lined layers, there's no doubt that now is the perfect time to shop for your cold-weather gear must-haves. We gathered the 9...