---
product_id: 704921634
title: "Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML)"
brand: "zelvot"
price: "¥3469"
currency: JPY
in_stock: true
reviews_count: 8
category: "Zelvot"
url: https://www.desertcart.jp/products/704921634-running-vest-soft-flask-bpa-free-500ml-collapsible-water-bottle
store_origin: JP
region: Japan
---

# Collapsible, space-saving design 500ml BPA-free hydration No bounce, silent stability Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML)

**Brand:** zelvot
**Price:** ¥3469
**Availability:** ✅ In Stock

## Summary

> 💨 Stay light, sip right, and never miss a beat!

## Quick Answers

- **What is this?** Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) by zelvot
- **How much does it cost?** ¥3469 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/704921634-running-vest-soft-flask-bpa-free-500ml-collapsible-water-bottle)

## Best For

- zelvot enthusiasts

## Why This Product

- Trusted zelvot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure & Safe Sipping:** Made from 100% BPA and PVC-free food-grade silicone for clean, worry-free hydration.
- • **Hands-Free Hydration:** Soft bite valve with high flow rate lets you drink on the move without breaking stride.
- • **Built for Every Adventure:** Perfect for marathons, hiking, cycling, and climbing—stay refreshed wherever you go.
- • **Space-Smart & Lightweight:** Foldable and weighing just 50g, it fits effortlessly into any running vest or backpack.
- • **Hydrate Without the Bounce:** Unique collapsible design minimizes movement and noise for a distraction-free run.

## Overview

The Zelvot Running Vest Soft Flask is a 500ml collapsible water bottle crafted from BPA-free silicone, designed to fit seamlessly into hydration vests and backpacks. Its innovative no-bounce design ensures silent, stable hydration, while the foldable structure saves space and weight. Featuring a wide mouth for easy cleaning and a soft bite valve for hands-free drinking, this flask is the ultimate companion for runners, hikers, and outdoor enthusiasts seeking efficient, on-the-go hydration.

## Description

Buy Zelvot Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML): Sports Water Bottles - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great soft flasks for long runs and race day - I used these Zelvot soft flasks with my running vest during my first ever half marathon, and they worked really well both in training and on race day. The flasks fit easily into my vest pockets and stayed in place without slipping out. They were comfortable to run with and did not cause any bouncing or rubbing. I liked that they compress as you drink, which helped prevent sloshing and made them feel less bulky over the course of the run. They were easy to fill and drink from while moving, and I didn’t have any issues with leaking. Having reliable hydration made a big difference for me, especially since this was my first time running that distance and I wanted something I could trust. One neutral note is that they do need to be rinsed well after use, especially if you use anything other than water, but that’s expected with soft flasks. Overall, these were a great addition to my running setup. If you already have a running vest and need dependable soft flasks for long runs or races, these are a solid choice.
Review: Great item perfect for my running vest - Best water bottle however it does not leak at all. It works amazing. I put it in my best or in my running back never leaked very durable. Very happy with my purchase.

## Features

- No Bounce - Our running water bottle features a unique design that collapses as you drink, minimizing backpack space and reducing movement. This ensures the running bottle stays stable and quiet without any bouncing or rattling.
- High Quality - This 500ml soft flask is made from 100% BPA and PVC-free food-grade materials. The wide mouth design makes filling and cleaning a breeze, while the leak-proof cap ensures no spills, keeping your hydration safe and secure.
- Collapsible Design Saves Space - This collapsible water bottle features a foldable design, allowing you to collapse or roll it up when not in use, saving space and making it easy to carry or store. Weighing just 50g, it’s the perfect choice for runners and hikers looking to lighten their gear.
- Easy Sipping - The updated soft bite valve offers a higher flow rate—just gently bite to drink! No hands needed to hydrate, so you can keep moving without missing a beat. The perfect companion for your active lifestyle!
- Stay Hydrated on the Move - The running vest water bottle fits easily into most running hydration vests or hydration backpacks, ensuring you stay hydrated while active. Perfect for running, hiking, cycling, marathons, skiing, or any intense activity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Zelvot |
| Material | Silicone |
| Bottle Type | Collapsible Bottle |
| Color | White |
| Capacity | 500 ml/min |
| Special Feature | Collapsable, Dishwasher Safe |
| Product Dimensions | 3.7"W x 1.77"H |
| Product Care Instructions | Dishwasher Safe |
| Model Name | SWB-AA |
| Number of Items | 1 |
| Reusability | Reusable |
| Shape | Cylindrical |
| Number of Packs | 1 |
| Item Weight | 0.08 Kilograms |
| Manufacturer | Zelvot |
| Part Number | SWB-AA |
| Item Weight | 2.89 ounces |
| Item model number | SWB-AA |
| Size | 500 ML |
| Special Features | Collapsable, Dishwasher Safe |
| Included Components | 500ml Soft Flask |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Bottle Type:** Collapsible Bottle
- **Brand:** Zelvot
- **Capacity:** 500 Milliliters
- **Color:** White
- **Material:** Silicone

## Images

![Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) - Image 1](https://m.media-amazon.com/images/I/61O8dn+KZfL.jpg)
![Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) - Image 2](https://m.media-amazon.com/images/I/71x+Vc8ufjL.jpg)
![Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) - Image 3](https://m.media-amazon.com/images/I/61bi3f+2cCL.jpg)
![Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) - Image 4](https://m.media-amazon.com/images/I/71TPvZ0bySL.jpg)
![Running Vest Soft Flask, BPA-Free 500ml Collapsible Water Bottle for Hydration Backpack, Folding Running Water Bottle for Marathon Hiking Cycling Climbing (White, 500 ML) - Image 5](https://m.media-amazon.com/images/I/71o6vN3vNcL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great soft flasks for long runs and race day
*by D***N on January 25, 2026*

I used these Zelvot soft flasks with my running vest during my first ever half marathon, and they worked really well both in training and on race day. The flasks fit easily into my vest pockets and stayed in place without slipping out. They were comfortable to run with and did not cause any bouncing or rubbing. I liked that they compress as you drink, which helped prevent sloshing and made them feel less bulky over the course of the run. They were easy to fill and drink from while moving, and I didn’t have any issues with leaking. Having reliable hydration made a big difference for me, especially since this was my first time running that distance and I wanted something I could trust. One neutral note is that they do need to be rinsed well after use, especially if you use anything other than water, but that’s expected with soft flasks. Overall, these were a great addition to my running setup. If you already have a running vest and need dependable soft flasks for long runs or races, these are a solid choice.

### ⭐⭐⭐⭐⭐ Great item perfect for my running vest
*by L***Y on August 1, 2025*

Best water bottle however it does not leak at all. It works amazing. I put it in my best or in my running back never leaked very durable. Very happy with my purchase.

### ⭐⭐⭐⭐ Orange is flimsy; buy another color
*by A***R on July 31, 2025*

I have this flash in blue and orange, and orange feels more flimsy than the blue. It works well, hasn’t leaked so far - but feels cheaper than the one that came with the vest I purchased .

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**Shop now:** [https://www.desertcart.jp/products/704921634-running-vest-soft-flask-bpa-free-500ml-collapsible-water-bottle](https://www.desertcart.jp/products/704921634-running-vest-soft-flask-bpa-free-500ml-collapsible-water-bottle)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*