Mike @HumbleRunning, Shoe and Gear Reviews
Super dialed organization, and the BOA-Style strap design works impeccably!
Recommended in Best Vests
Brand: Kailas Gear
Category: Trail & Ultra Gear
Recommended by Stephanie Jenkins, Ultra Runner — England, UK
Highlights: comfortable
The Kailas Fuga Air 8 IV Trail Running Vest Pack is a lightweight and versatile hydration solution designed for trail runners and outdoor enthusiasts. With its ergonomic design and ample storage, it ensures comfort and convenience during your adventures. 1. 3D ergonomic cutting for optimal weight distribution, reducing pressure on the hips and enhancing mobility. 2. ADF (All-round Dial Fit) system allows for quick, precise adjustments to achieve a personalized fit. 3. BI-FIX system prevents water sloshing in flasks, ensuring a stable hydration experience. 4. Layered compartment design features 14 storage pockets, including a dedicated space for a 1.5L water bladder. 5. Dual trekking pole attachment options provide flexibility for carrying essential gear. 6. Constructed from 90% breathable mesh for superior ventilation, with reinforced stress points for added durability. 7. Includes two TPU 500ml soft flasks with a 360° rotatable bite valve for easy access to hydration. The Kailas Fuga Air 8 IV is ideal for trail running, road running, marathons, and lightweight trekking, making it perfect for outdoor enthusiasts seeking hydration on the go. It excels in various environments, from rugged trails to urban paths, and is suitable for both novice and experienced runners. This vest pack is particularly beneficial during warm weather, providing breathability and comfort for extended activities.
Price: $159
Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.
Recommended by Stephanie Jenkins, Ultra Runner
Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.
Stephanie Jenkins recommends the Kailas Gear Kailas Fuga Air 8 IV for trail & ultra gear. Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.
Yes — Stephanie Jenkins recommends the Kailas Fuga Air 8 IV by Kailas Gear as their trail & ultra gear pick. Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.
View Stephanie Jenkins's expert gear recommendations on Rendezvu
3 experts recommend the Kailas Gear Kailas Fuga Air 8 IV.
Super dialed organization, and the BOA-Style strap design works impeccably!
Recommended in Best Vests
Ran by accident with this through 85k vert and 200 miles in the Alps. It a great design very comfortable. I was shocked by how much I could stuff into the pack and still it felt like carrying nothing.
Recommended in San Diego 200 (2026)

“Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.”

“Used as part of the big test, now is my go-to vest for shorter runs. It’s by far the most comfortable vest I’ve ever worn.”

