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Nathan Hydration Running Belt Trail Mix Plus - Adjustable Running Belt – TrailMix Includes 2 Bottles / Flask – With Storage Pockets. Fits Most iPhones and Smartphones
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Product information
Product Dimensions | 8.5 x 3.86 x 5.98 inches |
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Item Weight | 9.1 ounces |
Department | unisex-adult |
ASIN | B07PFDSV2S |
Item model number | 4640N-0015-OS |
Customer Reviews |
3.9 out of 5 stars |
Best Sellers Rank | #431,421 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #1,008 in Hydration Packs |
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Nathan Hydration Running Belt Trail Mix Plus - Adjustable Running Belt – TrailMix Includes 2 Bottles / Flask – With Storage Pockets. Fits Most iPhones and Smartphones
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Top Brand: Nathan
Product Description

A classic hydration waist belt with a modern twist, the Trail Mix Plus 3.0 features new materials and updated pockets to maximize storage. Updated holster design provides secure one-handed access to flasks, nd no-bounce technology keeps your belt and flasks in place while on the run.


Speedfit Holster
Updated holster design for easy, one-handed access to hydration and nutrition.

No Bounce !
Ergonomically shaped and multidirectional stretch belt keeps your essentials around your waist without the bounce.
We Sweat The Details
Push-Pull Valve
Push-Pull Blast Valve cap for soft sipping without leaking.
Visibility
Integrated 3< reflective fabric plus additional reflective trims for greater visibility.
Secure Pockets
Zippered pocket fits most large smartphones, plus a stash pouch for gels or keys.
Leak Proof Hydration
Includes two 10oz / 300ml flasks.

Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images

5 stars - at first, then fatal design flaw reveals itself, cannot recommend.
Top reviews from the United States
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- Reviewed in the United States on September 29, 2022I wish they made waistbands a bit smaller, but it’s manageable at a size 28 waist.
Big fan of the separate zip and Velcro pockets. Zip for phone and card security, Velcro for quick access to gels and cards.
I’ve had both insulated and non insulated bottles, I prefer the non. I didn’t notice that the insulation held too well in the heat and against a hot body, and the non insulated bottles are just lighter.
- Reviewed in the United States on May 5, 2022This is my 3rd Nathan belt, first one has worn out after a few thousand miles and the holders for the water bottles were not reliable. The second is going strong still, but this one is better for holding the phone I carry these days along with a good run's nutrition when the vest is not needed or just too hot. Great products.
- Reviewed in the United States on July 13, 2023This running belt functioned great for a year. Water bottles are stellar for longer runs. Took off a star because of the zipper breaking after purchasing a year ago. Not terrible for a year of use, but disappointing when every other part of the belt is still in good working order.
- Reviewed in the United States on May 2, 2020I have used a Nathan running belt for several years. It served me well, and I had been very satisfied but it was showing its age and I decided to retire it for this newer model.
I bought belt this in February, it worked very well initially. It handled bounce well. The utility straps are nice for gloves and I loved the larger pocket--in many respects it appeared an ideal and worthy replacement to my previous belt.
Here we are now a little over two months later and it is now a total failure. This is the problem: The water bottles are supported in the belt by a sturdy plastic holder, the sturdy plastic holder is held tight against the belt and runner by an elastic strap. As you run, the up and down motion of your body causes the elastic to rub against the holder causing it to wear and stretch out. Mine is now so loose that the bottles flop around, banging against my back and falling out of the belt entirely. Not ideal when you're only a few hundred yards from the start of your run and you have to turn around and pick up your water bottle off the ground.
I am not the only person with this issue. If you look at all the other 1-2 star reviews they are all individuals who come back several months later to complain of the same problem. In some cases I can see the elastic has broken entirely. Buyer beware of any review of this item with less than a few hundred miles of running.
I am now returning my belt to the manufacturer. I pulled up their website. It looks like customer support is non-existent. I figured I could call or email someone, but the only way to get service is to mail the product to their facility.--what is this, 1980?
1.0 out of 5 starsI have used a Nathan running belt for several years. It served me well, and I had been very satisfied but it was showing its age and I decided to retire it for this newer model.5 stars - at first, then fatal design flaw reveals itself, cannot recommend.
Reviewed in the United States on May 2, 2020
I bought belt this in February, it worked very well initially. It handled bounce well. The utility straps are nice for gloves and I loved the larger pocket--in many respects it appeared an ideal and worthy replacement to my previous belt.
Here we are now a little over two months later and it is now a total failure. This is the problem: The water bottles are supported in the belt by a sturdy plastic holder, the sturdy plastic holder is held tight against the belt and runner by an elastic strap. As you run, the up and down motion of your body causes the elastic to rub against the holder causing it to wear and stretch out. Mine is now so loose that the bottles flop around, banging against my back and falling out of the belt entirely. Not ideal when you're only a few hundred yards from the start of your run and you have to turn around and pick up your water bottle off the ground.
I am not the only person with this issue. If you look at all the other 1-2 star reviews they are all individuals who come back several months later to complain of the same problem. In some cases I can see the elastic has broken entirely. Buyer beware of any review of this item with less than a few hundred miles of running.
I am now returning my belt to the manufacturer. I pulled up their website. It looks like customer support is non-existent. I figured I could call or email someone, but the only way to get service is to mail the product to their facility.--what is this, 1980?
Images in this review
- Reviewed in the United States on December 17, 2020The belt itself is comfortable and the zipper pocket fits an iPhone 12. The Velcro pocket doesn’t stay fastened and I nearly lost my keys on a sprint. The biggest issue is the water bottle holders. The poor design for the holders has the stitching and elastic inside the plastic which means every time you pull your bottles out, the elastic gets worn and the stitching tears. Once the wearing starts, the plastic isn’t as tight and your bottles start to bounce around against you.
2.0 out of 5 starsThe belt itself is comfortable and the zipper pocket fits an iPhone 12. The Velcro pocket doesn’t stay fastened and I nearly lost my keys on a sprint. The biggest issue is the water bottle holders. The poor design for the holders has the stitching and elastic inside the plastic which means every time you pull your bottles out, the elastic gets worn and the stitching tears. Once the wearing starts, the plastic isn’t as tight and your bottles start to bounce around against you.Poor Bottle holder design
Reviewed in the United States on December 17, 2020
Images in this review
- Reviewed in the United States on January 11, 2020Great for long runs. I have the Pixel 3XL and it just barely fits in the pouch, so that could be a little bigger. I wear it a little higher than what I believe it's intended for, but when I wear it just under my ribs it prevents the water bottles from "sloshing" around. Otherwise, it's a great buy for training sessions on both trail and road runs.
- Reviewed in the United States on March 8, 2020I have used the Nathan Speed belt which has a smaller pouch that will not hold a phone for years. After years of use the elastic that holds the water bottles finally deteriorated and I wanted to find a product that would carry a phone for safety. I have a Garmin and am not a fan of the Apple Watch for running so finding a way to comfortably carry a phone for 20 mile training runs is important to me. Now that Nathan has a belt that will accommodate a phone, I bought this hoping it would work for me. I have a 26 inch waist and 38 inch hips. Belts will not stay on my hips and I have to wear them around my waist. Unfortunately this belt just fits when it is pulled to the tightest setting. I thoroughly wash the belt with technical cleaner and water after each run to help prevent the breakdown of the fibers from body sweat. Unfortunately on runs lasing more than 90 minutes the sweat causes the belt to loosen and it begins moving and twisting on my body and I simply can not get the belt tight enough to remain in place and I chaffed pretty badly even with the use of anti chafing products. The Nathan Speed Belt came in XS which fit down to a 24 inch waist and I was able to tighten it on longer runs and it remained in place but will not accommodate a phone. I guess I will have to go back and find the Nathan Speed belt in an XS and wear my phone in an arm case during the summer when it's too hot to wear tights with phone pockets.
This is a nice running belt and I would recommend it if you are able to wear it on your hips without it riding up or if your waist is at least 28 inches or larger. Fits waist sizes 26 - 40 is a bit miss leading. It will fit a 26 inch waist when it is dry but not when it's been soaked by sweat. I know -- gross, but reality for 90 minute or longer runs.
- Reviewed in the United States on August 22, 2020Great way to hydrate while on the run! Initially, I was very hesitant to purchase the belt because I didn’t know how comfortable it’d be to have water strapped to my waist but I bought it anyway. Turned out to be a great decision. The belt fit comfortably and I forgot that I was wearing it within a few minutes of running. Very easy to grab the water bottles and replace them. Definitely recommend buying if you’re remotely interested in having water on you but don’t want to wear a camelbak.
Top reviews from other countries
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Karsten BeckmannReviewed in Germany on March 31, 2023
3.0 out of 5 stars Mäßig zufrieden
Leider konstruktionstechnisch ein Rückschritt gegenüber dem Nathan Hydration Belt Mercury.
Beim Nathan - Trail Mix Plus2 schwingen die Trinkflaschen ziemlich stark und man muss den Gürtel schon sehr stramm/eng stellen, dass alles fest sitzt und keine Flasche verloren geht.
- NathanReviewed in the United Kingdom on May 20, 2023
2.0 out of 5 stars Bottles fall out
A shame as it's very comfortable but it does bounce a lot and the bottles have fallen out on every run. Returning for a refund. Definitely not useful for trail running.
- Josh GuyReviewed in Australia on June 1, 2021
5.0 out of 5 stars Stays put when running
Phone holder a little small but does the job
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E. JohligeReviewed in Germany on April 22, 2023
1.0 out of 5 stars Flaschen halten nicht und wackeln
Eigentlich habe ich mir den Gürtel als Ersatz für einen Nathan-Trinkgürtel gekauft, der nach 8 Jahren intensiver Laufnutzung in die Jahre gekommen ist. Dieser hier ist aber ein einzige Enttäuschung. Die dünnen Gummizüge an den Flaschenhaltern Leiern schnell aus, die Flaschen wackeln hin und her, was beim Laufen stört und fallen leicht raus. Der Gurt rutscht auch leicht, obwohl ich ihn auf die engste Einstellung gezogen habe und mit 80 kg kein Leichtgewicht bin. Wofür ist der konzipiert? Für 200 Kilo Läufer? Eine pure Enttäuschung. Ich habe jetzt eine andere Marke bestellt.
- Amazon CustomerReviewed in Australia on December 28, 2019
1.0 out of 5 stars Water bottle carrier broke day 1
I've used this in the past and its been ok, however i bough a brand new one for an ironman event, when about 10km into the run the plastic carrier snapped leaving me with one bottle for the remaining 32.2km.. i was not happy.