Backpack Ventilation Frame UL1 (Original)

The Backpack Ventilation Frame (Ultralight 1) is the easiest and lightest way to give your backpack that “ventilated back panel” feel. This design uses our patented airflow frame concept to create an airflow gap between you and the pack, helping dissipate heat and prevent clammy, soaked backs. This is our original design without a mesh sleeve to maximize airflow and ventilation on your back.

If your backpack makes you sweat too much, this attachable frame is the solution to optimize airflow. It's the lightest attachable backpack frame on the market. Easily attaches to frame and frameless backpacks. Fits on pack sizes 15L and larger.

Most people order this UL1 Original Frame with a Mesh Sleeve Cover. Click here to review our most popular product, the Backpack Ventilation Frame UL2 with a soft mesh cover —designed for maximum cushioning and airflow.

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Key Features

Reduces sweat and increases airflow
Frame comes in one size (universal design)
Supports loads up to 150 lbs
Fits pack sizes 15L and larger
Lightweight 3.3 oz (96 g
Made in USA
Made from recyclable, non-toxic materials
Lifetime warranty and refund option

Technical Specifications

Weight: 3.3 oz (96 g)
Dimensions: 15.5" tall x 8.5"wide  x 1.4" deep (39 cm x 21 cm x 3.6 cm)
Ventilation Gap: 0.75" (1.9 cm)
Max Load Capacity: 150 lbs (68 kg)

Will this ventilation frame fit my backpack?

Yes. Our frame comes in ONE SIZE and features a universal design that fits backpacks from small to large. This allows you to attach the frame to your favorite pack.

You can find an image in the product photos showing how our one-size frame fits on backpacks of varying sizes: small, medium, and large. 

Customers have attached the frame on the following brands: 5.11, 3FUL, Base Jumping Pack, Bonfus, Bullet, Camelbak, Chrome Industries,  Craghoppers, Columbia, Cotopaxi, Coyote, Dandee, Designer Park, Deuter, Diamond, DSPTCH, Duluth, Durston, Eastpak, Eberlestock, EDC, Expedition Units, Fjällräven, GoRuck, Gossamer, Granite Gear, Gregory, Habagat, High Sierra, Hill People Gear, Hydration Pack, Hyperlite, Jansport, K9 Sport, Kelty, Kurgo, Kurgo G, Kyte, LifeAF, Lilly, LV, Mammut, Mangellan, Mardingtop, Marmot, Military Assault Pack, Miramrax, ModGear, Molle 4000 Airborne Ruck, Mossy Oak, Mountain Wear, Mountainsmith, Mubasel, MVP Disc Sports, Mystery Ranch, Nashville Packs, Nomatic, Norfuma, North Face, Orange Mud, Osprey, Outdoor Vitals, Pack Back Designs, PDW WUULF, Peak Design, Perry Ellis, Photography Pack, Portable Oxygen Pack, REI Backpack, Red Oxx, Rockagator, Ruck Backpack, Salomon, SAR Backpack, Savage Gear, Savotta, Six Moon Designs, SKYSPER, SOG Ninja, SWD Movement, Swiss Gear, Tactical Backpack, Teti, Teton Sport, Timbuk2, ULA, Ultimate Direction, Under Armor, US Army Issued Pack, Volpi, WANDRD, Waymark, Wild Iowa Bushcraft, Yak Pak, Zenith, Zomake, Zpacks.

Customer Use Cases

Customers use the frame for activities such as hiking, commuting, school, camping, biking, rucking, lawn blowing, carrying O2 tank packs, hunting, and traveling.

Compatible with packs ranging from 15L to over 65L, the frame provides ventilation for various activities.

Want more cushion? Click here to order this Ventilation Frame with a Mesh Sleeve covering. The Mesh Sleeve offers two thickness options: a thin layer for ventilation and a cushioned side for comfort, making it ideal for larger packs and high-load situations.

Backpack Sizes that fit the frame

Light packs (15L to 20L)
Day/Travel packs (20L to 28L)
Larger packs (30L to 45L)
Excursion packs (45L+)

Benefits

Helps you sweat less and enjoy backpacking more
Improves airflow with natural ventilation, keeping you cooler and drier
Attaches to any backpack (framed or frameless), one size fits all
Sturdy, abrasion-resistant material is flexible and conforms to your back
Lightweight design (5.2 ounces). As light as a pair of socks

Included items

Backpack Ventilation Frame
Loops to connect the frame to your backpack straps
6 reusable zip ties to secure the frame on your backpack
Satisfaction guaranteed
Lifetime warranty
30-day return window

Material

Frame: Recyclable, durable, abrasion-resistant High-Density Polyethylene (HDPE). Safe for use, made from FDA-approved materials.
Side Loops: 550 Paracord Buckles: 0.5 in lightweight buckle
Straps: 0.5-in lightweight cord Webbing: 0.5-inch nylon webbing in black