You are using a web browser we don't support. Please use the latest version of one of these browsers.

Mozilla Firefox

Google Chrome

Apple Safari

Microsoft IE

Back to top

Kelty Mach 4 Tent

Cool Grey/Putty/Apple Green
Cool Grey/Putty/Apple Green

This product is no longer available, but don't go just yet.


  • Inflatable air poles, with easy-access points, allow tent to be inflated and deflated in about a minute; includes a high-volume, dual-action floor pump
  • Inflatable air poles resist bending, breaking and kinking, and keep the Mach 4 standing tall and ready to go in even in stormy weather
  • Integrated, fully vented rainfly further simplifies setup
  • Versatile with abundant comfort; remove the fully enclosed sleeping-room insert to create 1 large area for storing gear or escaping the weather
  • Large enclosed vestibule is over 50 sq. ft. and sleep room another 50 sq. ft.; when sleep room is removed, you have a cavernous 100 sq. ft. area
  • Large mesh windows in vestibule make it a screened-in hangout; fabric panels zip close for weather protection and privacy
  • Double-zipper end door opens wide for easy access and awning functionality (awning poles not included)
  • Fully stake out tent and guyout points, including side vents, to stabilize tent and maximize ventilation; guylines live in their own storage pockets for quick access
  • UV-resistant polyester rainfly will not stretch when wet, ensuring a consistently taut pitch
  • Seam-taped rainfly and floor ensure watertight protection
  • Noiseless zipper pulls and internal storage pockets enhance your comfort while you're in the Kelty Mach 4 tent


View all Kelty Camping Tents

REI membership


Best Use Camping
Seasons 3-season
Sleeping Capacity 4-person
Minimum Trail Weight 20 lbs. 1 oz.
Packaged Weight 20 lbs. 1 oz.
Packed Size 10 x 30 inches
Floor Dimensions 8 ft. 10 in. x 6 ft. 11 in.
Floor Area 50.25 square feet
Vestibule Area 50.5 square feet
Peak Height 6 feet
Number of Doors 1 door
Number of Poles 2
Pole Material Air tubes
Pole Diameter Not applicable
Canopy Fabric 68-denier polyester
Floor Fabric 68-denier polyester
Rainfly Fabric 68-denier polyester
Design Type Freestanding

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

Gear & advice you can trust

At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

Anyone can shop at REI, but for a one-time $20 fee you can become an REI member and enjoy a lifetime of benefits. These include an annual member refund, typically 10% back on eligible purchases.*



*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips, REI Garage, and discounted items. Learn more