REI is taking up to 50% off best-selling Arc’teryx gear for fall — here are my 11 favorite deals

This racerback, crew neck tank top features a breathable fabric that wicks moisture away and dries quickly, making it perfect for longer hikes. It's soft, comfortable and built for performance.

If you're a big Arc'teryx fan (who isn't?) then you'll want to grab this t-shirt. It has the Arc'teryx logo front and center and is made of comfortable, breathable cotton jersey fabric.

A cozy, cuffed beanie never goes out of style, and with temperatures dropping, this blue staple is ready to keep you warm and fashionable, all fall and winter long.

This long-sleeved exercise top was inspired by running apparel, but then adapted to make it suitable for mountain-based high-intensity activities. It's breathable, maximizes airflow, and is designed to reduce chafing.

If you have some backcountry adventures planned, this is the hat you'll want to bring along. The Arc'teryx Cranbrook hat has a wide brim that shades your face, ears and neck from the sun, and it's ventilated to keep you nice and cool.

If you have some hikes or excursions on your agenda, these pants will be your go to. Their breathable, 4-way stretch nylon fabric was built for movement and their durable, air permeable and water repellent properties will keep you protected from the elements.

This stylish long sleeve shirt is made with a soft, warm and breathable merino wool blend and it has a streamlined fit which layers easily. Its seams are also minimized to reduce irritation. It's the perfect shirt to help you move comfortably on hikes, runs and treks.

This chic zip-up jacket is designed with backpackers and hikers in mind. Weighing just over six ounces, it's made from synthetic fabric with UPF 50+ sun protection. Nice and breathable, the fabric is also moisture-wicking to keep you dry.

The Arc'teryx Squamish Hoody is completely windproof and finished with DWR, making it a versatile outer layer for those nippy wintry hikes. There's even a capped hood for keeping your face dry. There are currently six colors discounted at varying price points.

This deal is on the men’s Arc’teryx Atom Insulated Hoody, which is available in four different colors that are now on sale. Lightweight and weather-resistant, warm yet breathable, this high-tech piece of gorpware is fully worth the hype.

Lightweight, comfortable and breathable, this durable waterproof and windproof jacket will protect you from the elements without sacrificing features or packability. It's a great option for layering or wearing on its own.