REI Outlet

Tents & Shelters

Mountain Hardwear ACI 3

Introducing the Mountain Hardwear ACI 3 – a pinnacle of performance and innovation in the world of outdoor gear. Designed with precision and crafted with care, this tent is built to withstand the harshest of conditions while providing unmatched comfort and protection. Whether you’re an avid mountaineer, a backpacking enthusiast, or a casual camper, the ACI 3 is the perfect companion for your adventures.

One of the defining features of the ACI 3 is its exceptional weather resistance. Constructed with Mountain Hardwear’s advanced AirConvection Technology, this tent maximizes airflow, preventing condensation and ensuring a dry and comfortable interior even in humid or rainy conditions. The ripstop nylon fabric, coated with DWR (Durable Water Repellent), effectively repels moisture, keeping you and your gear dry during sudden downpours or heavy snowfall.

The ACI 3 is a three-person tent, but its ingenious design maximizes the usable space. With an interior floor area of 43 square feet (4 square meters) and a peak height of over 45 inches (115 centimeters), the tent is spacious enough to comfortably accommodate three adults or provide ample room for two people with extra gear. The vertical sidewalls and near-vertical front and rear walls maximize the headroom and interior space, allowing you to move around freely and store your gear without feeling cramped.

Setting up the ACI 3 is a breeze, thanks to its innovative pole system. The DAC Featherlite NSL poles, made from lightweight yet incredibly durable aluminum, are color-coded and pre-bent for easy identification and assembly. The symmetrical pole structure ensures optimal tension and stability, even in high winds or harsh weather conditions. The single-hubbed pole configuration simplifies the setup process, allowing you to pitch the tent quickly and easily, saving you valuable time and energy.

Not only is the ACI 3 reliable in extreme weather conditions, but it’s also designed for comfort and convenience. The dual vestibules provide additional storage space for your gear, ensuring that it remains protected from the elements. The large mesh windows on both sides promote ventilation and allow for stunning panoramic views, immersing you in the beauty of nature while maintaining privacy. The interior pockets and gear loft offer convenient storage options for smaller essentials, keeping your living space organized and clutter-free.

Durability is another key strength of the ACI 3, making it suitable for long-term use and rugged terrains. The tent floor is made from a robust and waterproof nylon fabric, equipped with a bathtub-style construction to prevent ground moisture from seeping in. The fly and tent body are also reinforced with strategically placed rugged fabric panels, ensuring exceptional tear resistance and long-lasting performance. With these features, the ACI 3 is built to withstand the test of time and provide you with reliable shelter throughout your adventures.

Mountain Hardwear has always prioritized sustainability, and the ACI 3 is no exception. The tent is constructed using environmentally friendly materials, including recycled fabrics and low-impact manufacturing processes. This commitment to sustainability ensures that your outdoor experiences do not come at the expense of the environment, allowing you to enjoy nature responsibly.

In summary, the Mountain Hardwear ACI 3 is a top-tier tent that combines durability, weather resistance, and comfort to meet the demands of outdoor enthusiasts. With its innovative design, advanced materials, and attention to detail, this tent provides a reliable and comfortable shelter for your camping and backpacking adventures, making it the ultimate companion for your outdoor pursuits.

Read more about Mountain Hardwear ACI 3 at Find the specs, the best price, and compare it to other similar products.


Capacity 3
Season 3
Doors 1
Inner Tent Area 45.8 square feet
Vestibule Area 45.8 square feet
Interior Height 41 inches
Weight 8 lbs 1.1 oz
Product Brand Mountain Hardwear
Mountain Hardwear Tents & Shelters

Added: September 19, 2023

* Prices are updated daily from the best online outdoor stores. Please check sites for the latest best price.