Soft Flask

Soft Flask Manufacturer

Custom soft flasks for wholesale orders.

*Build a standalone bottle line or add a flask to the gear you already sell.*

Vancharli Outdoor manufactures custom soft flasks for sports brands, wholesalers, and importers. The styles shown hold 250 mL or 500 mL, and we can develop other capacities to suit your project. Choose a bottle shape, drinking spout, and branding for standalone retail, or pair your flask with a vest or belt from our hydration gear range.

Since 1995
OEM & ODM
Typical MOQ: 500 pcs
Custom Soft Flask Bag Manufacturer

Soft Flask Styles for Wholesale

*Compare six styles by capacity, bottle shape, and drinking design.*

1. 250 mL Compact Soft Flask

250 mL Compact Soft Flask

This slim 250 mL (8.5 US fl oz) flask has a food-grade TPU body, a silicone bite valve, and a tethered dust cap. It weighs approximately 30 g (1.06 oz) and folds down when empty.

2. 500 mL Soft Flask with Volume Markings

500 mL Soft Flask with Volume Markings

This slim blue flask holds 500 mL (16.9 US fl oz) and has a short drinking spout with a clear cover. Printed markings make it easy to check the water level when filling the flask or after a few sips.

3. 500 mL Soft Flask with a BPA-Free TPU Body

500 mL Soft Flask with a BPA-Free TPU Body

This 500 mL (16.9 US fl oz) flask features a BPA-free TPU body and a silicone bite valve. A tethered dust cap covers the mouthpiece between uses and stays attached when opened.

4. 500 mL Cylindrical Soft Flask

500 mL Cylindrical Soft Flask

This 500 mL (16.9 US fl oz) style pairs a squeezable cylindrical body with a short drinking spout. It folds down when empty and fits into fitness and everyday sports bottle collections.

5. 500 mL Gradient Soft Flask

500 mL Gradient Soft Flask

This 500 mL (16.9 US fl oz) flask has a blue-to-lime gradient, a foldable body, and a short drinking spout. Its broad front panel gives you room for a prominent logo.

6. 500 mL Soft Flask with Carry Loop

500 mL Soft Flask with Carry Loop

This translucent 500 mL (16.9 US fl oz) flask has printed volume markings and a short drinking spout with a clear cover. A woven loop at the neck makes the flask easy to pick up.

Soft Flask Customization Options

*Confirm capacity, materials, components, and branding before approving your sample.*

Capacity and Bottle Shape

Tell us the capacity you need, and we can develop a flask around that target. A slim body is a good starting point for a narrow vest pocket, while a cylindrical profile can suit a standalone fitness range. For a vest or belt bundle, share the pocket opening and depth so we can check the filled flask against the intended holder during sampling.

Materials and Food-Contact Requirements

Specify the bottle body material and any food-contact requirements early in the project. The 250 mL compact style uses a food-grade TPU body. The 500 mL bite-valve style shown as product 3 uses a BPA-free TPU body. If you need material documentation, share the destination market and specify which components it should cover, such as the body, cap, valve, or seals.

Drinking Spouts, Caps, and Accessories

Choose from compatible bite valves, drinking spouts, caps, and other fittings for your selected soft flask model. Multiple styles are available, and component colors can be customized to match your product line. These accessories are supplied only as part of a soft flask order.

Colors, Logo Printing, and Packaging

Match the bottle color and logo placement to your collection. If the design includes volume markings, check the placement and readability of both the logo and markings on a filled sample. Confirm the sales format early so the packaging suits an individual flask, a multipack, or a vest-and-flask set.

Why Choose Vancharli Outdoor

*Develop the flask around how your customers will carry, use, and buy it.*

Two soft flasks can hold the same amount of water and fit very differently in a running vest. At Vancharli Outdoor, we look at how the flask will be used, what gear it will be paired with, and how you plan to sell it. Those details guide the choice of flask, the sample review, and the final order specifications.

1995

Established

OEM & ODM

Development Support

500 pcs

Typical Starting MOQ

China & Southeast Asia

Production Resources

Show Room
Sample Room
Production Show
Sewing

OEM and ODM Development

Start with a reference style or share a brief with your target capacity, carry method, and branding requirements. We can use those details to identify a suitable starting point for development.

Flask and Pocket Fit

We check how the filled flask sits in the intended vest pocket or belt holder. This helps catch issues such as a cap that sits too low or a bottle shape that is awkward to slide back into the pocket.

Assembled Sample Review

Review the body, cap, and valve together on one assembled sample. Check the finished dimensions, how the cap opens, and where the logo sits when the body is filled.

Private-Label Branding

For a standalone retail flask, plan the branding around how the bottle will look on the shelf. For a vest or belt bundle, coordinate the flask’s colors and artwork with the rest of the set.

Order Specifications Before Production

Confirm the model, components, print, and packing details before production. Your buying team can refer to the approved specifications when reviewing the finished order.

Soft Flask Features

*Six design details that affect carrying, drinking, and refilling.*

Collapsible Body

Collapsible Body

The flexible body takes up less space as the flask empties and folds down for storage after use.

Covered Mouthpieces

Covered Mouthpieces

On selected styles, a protective cover helps keep dust and dirt off the mouthpiece between uses. A tethered cover stays attached to the flask when opened, so users can close it again after drinking.

Different Bottle Profiles

Different Bottle Profiles

Slim, cylindrical, and broader profiles give buyers options for different pocket shapes, carry setups, and retail collections.

Silicone Bite Valves on Selected Styles

Silicone Bite Valves on Selected Styles

A silicone bite valve lets users sip from the flask without unscrewing the main cap.

Accessory Options by Model

Accessory Options by Model

Compatible spouts and fittings vary by flask model. On a vest-mounted flask, the spout’s height and angle affect how easily the runner can reach it while the flask sits in the pocket.

Volume Markings on Selected Styles

Volume Markings on Selected Styles

Printed graduations provide a quick reference when refilling the flask or checking how much water remains.

Where Soft Flasks Fit

*Match each flask to the way it will be carried and used.*

Road Running and Race Kits

A compact 250 mL flask works well in a minimalist running kit or a race bundle. If the kit includes a hydration belt, check whether the runner can take the flask out and put it back without readjusting the belt.

Trail Running Vests

A 500 mL flask gives runners more water per pocket. For a vest designed for in-pocket drinking, check where the mouthpiece sits when the flask is full and again when it is partly empty.

Hiking and Day Packs

A collapsible flask can serve as a second bottle on day hikes and fold down after use. For a day-pack bundle, check whether the side pocket holds the flask securely once it is partly empty.

Fitness and Branded Sports Collections

A cylindrical style suits a fitness bottle range, while the gradient style gives branded artwork a colorful backdrop. For standalone retail, review how the logo looks on a filled flask and how the bottle will be displayed in its packaging.

Soft Flask Bag Riding Scenarios

Manufacturing and Quality Assurance

*We check production details against the approved sample and order specifications.*

STEP 01

1. Materials and Components

We verify the bottle body material, cap, valve, and any specified seals against the approved configuration. When the order calls for material documentation, we check that it covers the relevant components.

STEP 02

2. Body Seams and Finish

We inspect the welded seams, base, and shoulder for visible defects and compare the finished shape with the approved sample.

STEP 03

3. Capacity and Dimensions

We verify the agreed fill capacity and key dimensions. For flasks paired with a vest or belt, we check measurements such as the overall height with the cap fitted and the width when filled.

STEP 04

4. Cap Fit and Valve Function

We check that the cap seats correctly and that the drinking valve and protective cover work as intended on the selected style.

STEP 05

5. Leak Checks

We check the body seams, bottle neck, and drinking assembly for leaks using the inspection method agreed for the order.

STEP 06

6. Printing and Packaging

We compare the logo, volume markings, and color with the approved sample, then verify the labels, packing quantities, and contents of any bundled sets.

Soft Flask FAQs

*Answers to common questions about materials, fit, customization, and bulk orders.*

The styles shown hold 250 mL (8.5 US fl oz) or 500 mL (16.9 US fl oz). We can also customize capacity for wholesale orders. Share your target volume and any size limits if the flask needs to fit an existing vest pocket or belt holder.

Product 3, the 500 mL style with a silicone bite valve and tethered dust cap, has a BPA-free TPU body. If your specification also covers the cap, valve, or seals, list those parts when requesting material documentation.

The 250 mL compact flask shown as product 1 uses a food-grade TPU body. For orders with specific food-contact requirements, share the destination market and the components your documentation needs to cover.

Fit depends on the flask shape and the pocket or holder design. Share the opening width and depth, or provide a reference sample. We can check how the filled flask sits and whether the mouthpiece is easy to reach.

Yes. Share your logo artwork, preferred placement, and the graduations you need. We can check the print size and readability on a sample of the selected style.

You can order complete soft flasks on their own or bundle them with a vest or belt. For a bundled order, specify the flask style, how many flasks go in each set, and how the set should be packed for retail or distribution.

Yes. Use the sample to check the filled shape, cap operation, and fit with your gear. For a private-label order, confirm which color, print, and packaging details you want to see on the approval sample.

Custom soft flask orders typically start at 500 pieces. Share your preferred style, colors, and packaging requirements so we can confirm the MOQ for your order.

Lead times depend on the bottle configuration, artwork approval, packaging, and order quantity. For a vest or belt bundle, the schedule also includes time to approve the fit and packing of the assembled set.

Follow the care instructions for the selected model. After use, empty and rinse the flask and mouthpiece, then leave the cap off and let the parts air-dry before storing. For private-label orders, care instructions can be reviewed when you approve the packaging or insert.

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