When you’re heading out for a weekend of two-wheeled adventures, keeping your kit together can be a challenge — especially if you’re squeezing in with a few buddies into a Subaru Crosstrek. Nobody wants to be “that guy” so that’s where the Osprey TrailKit 40L comes in handy.

Osprey TrailKit 40L Duffel Features:

  • Stowaway contoured harness and yoke for comfortable backpack carry
  • Tuckaway helmet carry
  • Dedicated zippered and ventilated footwear end compartment
  • Large lockable U-zip access to main compartment
  • Three burly grab handles
  • D-ring attachments for adding a shoulder strap (sold separately)
  • Weather-protected main compartment zip path with overlapping rain flaps
  • Extra lashing points on all sides to stow gear or secure the bag
  • Large end compartment for shoes with ventilation window
  • Zippered side panel nutrition and small items organization pocket
  • Zippered side compartment with water bottle carry/webbing straps for attaching accessories
  • Fabric: Main features 210/420/630D Nylon Dobby Blend, Pockets and lining feature 420D Trapezoid Nylon Ripstop and the bottom features 1680D Ballistic Nylon
  • MSRP: $120
Osprey TrailKit 40L Duffel Review

Everything in once place — the perfect weekend adventure bag.

Grab and go with the TrailKit

A weekend adventure doesn’t need to involve multiple bags and the Osprey TrailKit 40L makes it simple. As with all Osprey bags, this one is built with top-notch materials and construction that includes their famous All Mighty Guarantee for a lifetime of use. If you’re heading out for a weekend of fun, the TrailKit makes it easy with a spot for everything.

Because the TrailKit needs to endure the back of your buddy’s Subaru, 80 mph winds atop a vehicle and the loving hands of the TSA, the exterior is built burly. With ballistic nylon and nylon dobby blend, there’s not much to worry about going awry. And, the durable and snag-free zippers make access a breeze.

Osprey TrailKit 40L Duffel Review

Mesh interior pockets on left with water bottle and expandable straps on right.

At it’s core, the TrailKit 40 is a carry-on sized duffel with added sports-specific compartments and the versatility of going from hand-toting to a backpack in a jiffy. Since I used the TrailKit as a carry-on kit to Sea Otter and other weekend adventures, I kept the backpack straps deployed at all times. Speaking of those straps, they are wicked-comfortable, even when the TrailKit is loaded to the hilt.

Because Osprey knows a thing or two about hauling gear, the shoe compartment keeps things like cleats away from your back while walking through the airport or around town.

Osprey TrailKit 40L Review

Select your helmet wisely — Rudy Project Racemaster (left) vs. Smith Rover (right).

It does include a deployable helmet stow, which is a little funky to use. You need to be careful the helmet type and placement so as not to be destroyed when tossing things around. Some helmets are better-suited to the exposed location. I’d give the nod to snowsports helmets or rock climbing helmets in particular, but delicate road helmets with aerodynamic fins (like the Rudy Project Racemaster MIPS) and such would give me pause. But, a good MTB helmet (like the Smith Rover MIPS), seems to sit more securely. Just use common sense when placing a helmet up there.

The durable handles at each end and one side are easy-to-grab and make hauling the TrailKit around even easier. And, the backpack straps can be stashed, if necessary.

Osprey TrailKit 40L Review

The shoe compartment keeps dirty shoes from your clean clothes.

In practice, the vented shoe compartment can easily swallow two pairs of shoes or a single pair of hiking boots. The rest of the main compartment can swallow everything you’d need for a weekend on the trail. The zippered side pocket has mesh panels with a key clip and the top also features a soft-lined compartment for delicate items (goggles, electronics, sunglasses).

The Good

  • Killer weekend bag for cycling
  • In backpack mode, it’s wicked-comfortable to carry
  • Shoe compartment is perfect for two pairs of shoes
  • Durable fabrics for a lifetime of abuse
  • Panel design for main compartment offers easy access

The Bad

  • Be careful with the helmet carry — lightweight helmets may get damaged
  • Side pockets are a little awkward to use

The Bottom Line: Osprey TrailKit 40L

Simplify your weekend adventures by hauling it all in the TrailKit. With a place for everything and the ability to carry it as a well-sorted backpack, you’ll travel knowing you have everything you need in one bag.

Buy Now: Available at Backcountry.com

About Author

A native of the Pacific Northwest, Jason quickly developed a love for the outdoors and a thing for mountains. That infatuation continues as he founded this site in 1999 -- sharing his love of road biking, mountain biking, trail running and skiing. That passion is channeled into every article or gear review he writes. Utah's Wasatch Mountains are his playground.

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