mango wonder goods stem bag on a surly cross check in the woods


Front and center(ish)
Stem Bag
Stem Bag
Stem Bag
Stem Bag
Stem Bag
Stem Bag
Stem Bag
Stem Bag

Stem Bag

Regular price$64.99
Shipping calculated at checkout.

Keep your snacks and other essentials on hand with Wonder Goods classic stem bag. Easily attaching to your handlebars/stem for quick access to your biking basics, such as a water bottle, snacks, sunglasses, camera, or whatever else you might need. This bag features 3 elastic exterior pockets, a brass grommet vent, padded and lined interior and an ultra user friendly one-hand open/close top cinch that makes for fast, easy and safe access to the bag while riding. This bag also features a rear anchor attachment point which gives it a secure fit while also stopping any unwanted movement.  Try two stem bags for a true luxury ride, one for drinks and one for snacks.

    • Easy one-handed open and close top
    • Orange liner for interior visibility
    • Fits up to a 32-40 oz container
    • Multi-point attachment
    • Weather-proof materials
    • 3 elastic exterior pockets
    • Adjustable 1" Velcro attachments
    • Rear anchor attachment point
    • Brass grommet vent on base
    • Padded main body
    • Adjustable rear shock-cord
    • Interchangeable/ removable patch

    • 1000D Cordura® exterior
    • 200D nylon oxford cloth liner
    • 1” Velcro® one-wraps
    • 1” nylon webbing
    • 1/8" Shock-cord
    • Solid brass grommet
    • 1/4" closed-cell foam
      • 5" Elastic

    • 4” diameter
    • 7" tall (when closed)
    • 10" tall (fully opened)

    Made in the U.S.A.


    Pairs well with


    • 1000D coated Cordura™ water-repellent exterior fabric

    • 200D water repellent pack cloth interior lining

    • 1" soft touch Velcro One-Wraps™

    • 1" nylon webbing

    • Closed-cell foam

    • Nylon binding

    • 1/8" Shock-cord

    • Solid brass grommet

    • 5" Elastic


    • Easy one-handed open and close cinch top

    • Lined weather-proof interior fabric

    • Fits up to a 32-40 oz water bottle

    • Adjustable & Removable 1" Velcro One-Wraps™ for quick and easy mounting to handlebars

    • Weather-proof exterior fabric

    • 3 exterior elastic pockets

    • Brass grommet vent on base

    •Foam insulation/padding to protect belongings

    • Rear bottom bungee anchor attachment for secondary securing option

    • Nylon-bound interior seams for extra water protection and cleaner interior

    • Molle compatible & adjustable

    • Interchangeable front Velcro™ patch (more available here)

    • Made in the USA


    • 4” diameter

    • 7" tall (when closed)

    • 10" tall (fully opened)

    • 7"L x 1"W Velcro One-Wraps™

    • 10"L elastic bungee anchor

    • Bag weight = 4.5oz (bag only)

    • Total weight = 5oz (with attachments)

    What our customers are saying!


    This bag rox!

    A stylish, perfect size bag for a really great price point. I've filled this thing with gummy snacks and energy chews for adventure rides, fruit, cheese, and a sandwich for long hauls, a big ol' iced coffee for my morning commute, and even a tall boy for the pregame ride to the pregame. Love the way this bag looks on my bike and love how it holds a whole lot without getting in the way.

    Kelly D.

    One Bag to Rule Them All

    I picked up a stem bag from Wonder a while back and rarely leave home without it. Sometimes it's the only bag on my bike, and at different times I've used it to carry things ranging from a large chain lock, a small handful of tools (flat fix kit+), a plethora of snacks, even small rain jackets. These bags can fit more than you'd think in them, but are never overkill, and will fit on nearly any bike. Stem bags are also great solutions to bikes that can't take a traditional bottle cage, like really small, or really old bikes, or full-suspension mountain bikes. Keep one on your bike at all times, just in case, or throw two on to round out your storage capacity for a tour or bikepacking trip.


    Austin V.

    I Wonder how Good this bag is?

    Wonder no more, this bag is really good! This bad bb is big enough for a Nalgene, 40oz of Freedom, a burrito, fists full of candy, and many other goods, although, I wouldn't try to stuff these all in at the same time.

    Mitch M.

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