Formula 250

(7 customer reviews)


Performance depends on the intake of fuel—that goes down well, feels good and rapidly converts to energy. Every body is unique and requires a different recipe. What is your secret formula? Mix a special sauce up and deliver with this. If Gu is for you—a few packs can go here too. Thanks to Formula 250.

In the Kitchen with Bryce:  Rice Formula for your F250 Handheld (watch video)


With a large flow and flip top cap combination, this dishwasher safe, silicone bottle is perfect for water, energy drinks, gels or real food. The silicone material is durable, flexible, stain-resistant, taste and odor free. Use the bottom loop for hanging upside down to dry or attaching to gear. Shaped for quick easy stowage in and out of a race vest pocket and the rounded tear-dropped shape also makes it easier to clean and to use all the fuel inside. Collapses tiny when empty. Seamless design is easier to clean—and enables every drop of the contents to be efficiently dispensed. This is the Formula 250. The Formula 250 is BPA free.

Additional information

Weight 0.125 lbs
Dimensions 3 × 2.25 × 7.5 in

7 reviews for Formula 250

  1. djfitz (verified owner)

    I probably would give this four and a half stars if there was a half-star rating. 🙂 I really like the bottle and the concept, as I use UCAN SuperStarch and this is a perfect for mixing it to your desired thickness for a long run. For that reason I’m giving 5 stars despite my one minor concern, which is that a little bit of the product gets trapped in the hard plastic neck assembly, no matter how many times I rinse it. I used chocolate flavor UCAN so the brown residue is visible and I hope it doesn’t get moldy. I’m sure it’s no easy feat to design a bottle with a soft, silicone body and join it to a rigid lid with a wide enough opening for filling, so I can easily forgive this and was glad to find it. I tried other types of silicone containers, like the ones designed for shampoo, etc. for travel, but they are heavy. This one has thinner silicone which is more collapsible and lighter weight. The lid snaps closed so you know it’s not going to leak in your drop bag.

    I had some trouble getting the UCAN powder to go through my funnel into the bottle, but that’s just the nature of UCAN (messy stuff!) and not a complaint about this product.

  2. Will

    Great product and one I have been looking for containers you can put anything into that you make, mix or other favorite food products so this Formula 250 is ideal for this. It is very easy to use with my Spry vest as it fits into the front pocket and can be pulled out with one hand and the quick snap flip top is easy to open for fast food extraction while your running. I also like that it does not have a plastic residue that taste bad. The only issue I have faced is that food particles and fluids get trapped in between the thin layers on the inside of the upper hard plastic making it really hard to clean out completely, also the grey/red unscrew top has ridges in the inside that food gets stuck in. Perhaps sealing these two areas for a complete seamless design would keep particles and fluids out which would be the ideal all around perfect product. Thank you UltrAsprie for the great functional quality products which I train and race in a lot:)

    • Tina Harward

      Hi Will, thanks for sharing your experience with us. Bryce recently did a Facebook live session on helpful tips for cleaning the Formula 250. You can check it out at: The portion that covers the Formula 250 is about 7 minutes into the session.

  3. gcruns (verified owner)

    This is a good product and the flow rate is really nice. I use this to put baby food in. It is easy to use while running.

  4. Kassandra Marin

    I just love the size and foldability. I actually use it a lot on my shorter runs in the summer where I don’t need a full on vest, because it’s just so easy to carry. I use this instead of the reusable cups at cupless races since I don’t need to worry about spilling either; super easy to refill mid-race.

  5. John (verified owner)

    Really good container for food hope to get a few more for my longer self supported runs

  6. John (verified owner)

    Great product no issues easy to fill and use

  7. Tom R. (verified owner)

    Great product! I make my own gel type nutrition and have been looking for the perfect reusable bottle – this is it. Fits in the side pocket of my legacy vest, easy to use and clean. Highly recommend.

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