Open Top / Flat Bottom FIBC Bags
A straightforward 1-ton bulk bag for dry flowable materials that need efficient filling and stable pallet handling.
FIBC Bulk Bags
Duffle Top / Flat Bottom FIBC Bags
Duffle top flat bottom bulk bags add a sewn fabric closure at the top of the standard open configuration - useful when covered transport, dust containment, or a cleaner fill environment is an operational requirement. The flat bottom provides the same stable pallet footprint as the open top format while the duffle gives you a tie-close option after filling.
Quick Answer
The 30-second specification check.
- Use when where covered transport or post-fill closure is an operational or customer requirement
- Safe working load 500 kg to 2,000 kg standard
- Fabric Woven polypropylene - coated or uncoated
- Sizes 35 x 35 x 40 in to 42 x 42 x 72 in common range
- Discharge Open base / tipping - no bottom spout
- Test standard ISO 21898 (COC included)
What This Configuration Is
About this bag configuration.
The duffle top / flat bottom FIBC is a woven polypropylene bulk bag that combines wide-access filling with a fabric skirt at the top that can be tied, folded, or cinched after filling. There is no spout - the fill area remains fully open and unrestricted, making it compatible with the same hopper, conveyor, or chute filling systems used for open top bags. The flat sewn bottom provides a stable, pallet-ready base. This format is commonly selected when buyers need some degree of post-fill closure without committing to a spout-top configuration. Liner options, print configurations, and loop style choices are available depending on project requirements.
Compare with: Open Top / Flat Bottom Duffle Top / Discharge Spout Bottom Full Open Top / Flat Bottom With Liner
Industries & Applications
Where this bag fits.
- Food ingredients and dry blends - where covered transport or post-fill closure is an operational or customer requirement
- Plastic pellets and resin - pellet handling lines where the bag needs to be tied after filling to prevent spillage in transit
- Agricultural seed and feed inputs - programs requiring a simple covered format without the added cost of a spout configuration
- Industrial powders - where dust generation during transport is a concern and a loose-tie closure is sufficient
- Dry compounds and additives - operations where material integrity during transport benefits from a fabric barrier at the top
Food Ingredients
Dry blends, ingredient transfer, covered fill workflows
View industry detail →
Agriculture
Seed-related materials, covered dry inputs, seasonal programs
View industry detail →
Plastic Resin and Pellets
Pellet handling where post-fill closure is required
View industry detail →
Chemicals and Powders
Powder transfer workflows requiring top containment
View industry detail →Specs at a Glance
Technical reference for quoting discussions.
Specifications below reflect common commercial ranges and standard options for this bag style.
Datasheet
XTRX-DTFB · 2026
| 01 Configuration | Duffle top / flat bottom |
|---|---|
| 02 Top closure | Duffle tie - fabric skirt with cord or tie closure |
| 03 Typical capacity | 500 kg to 2,000 kg |
| 04 Safe working load (SWL) | 500 kg to 2,000 kg standard |
| 05 Safety factor | 5:1 standard; 6:1 available on request |
| 06 Body fabric | Woven polypropylene - coated or uncoated |
| 07 Liner option | Available on request |
| 08 Loop style | Cross-corner standard; alternatives available |
| 09 Bag dimensions | 35 x 35 x 40 in to 42 x 42 x 72 in common range |
| 10 Discharge method | Open base / tipping - no bottom spout |
| 11 Print options | Single-colour or multi-panel |
* All FIBC bags are fully customizable for dimensions, fabric weight, loop style, liner setup, top and bottom construction, and print requirements.
Sizes & Pricing
Standard variants and published pricing.
Variants with published volume pricing appear first. Open any row for full specification, pricing tiers, and a quick inquiry form.
| Variant | Size | SWL | Build | Liner | Action |
|---|---|---|---|---|---|
| 35x35x42 — Volume Pricing Volume Pricing | 35 x 35 x 42 in (90 x 90 x 107 cm) | 1000 kg (2,205 lb) | Tubular woven polypropylene, 160 GSM, plain white | No | See Pricing |
| 35x35x45 standard duffle | 35 x 35 x 45 in | 1000 kg | Coated woven polypropylene with duffle closure | No | Open |
| 35x35x53 taller duffle | 35 x 35 x 53 in | 1000 kg | Coated woven polypropylene with duffle closure | No | Open |
| 35x35x45 with PE liner | 35 x 35 x 45 in | 1000 kg | Coated woven polypropylene with duffle closure | PE liner | Open |
| 42x42x48 heavy-duty duffle | 42 x 42 x 48 in | 1500 kg | Heavy-duty coated woven polypropylene with duffle closure | No | Open |
Standard Build
What this bag includes.
- Duffle top closure - fabric skirt for tying, cinching, or folding closed after filling
- Full top fill access - unrestricted opening compatible with hopper, conveyor, and chute systems
- Flat sewn bottom - stable pallet-ready base with consistent footprint under load
- Four-loop lift design - standard cross-corner loops; alternatives available
- Woven polypropylene body - coated or uncoated depending on application
- 1-ton class construction - SWL and safety factor confirmed at project review
- Optional liner compatibility - form-fit or loose PE liner available on request
- Optional print - single-colour or multi-panel available
Customize Beyond Standard
Configure to your requirements.
- Duffle length and closure method - skirt depth and tie-off style confirmed at specification review
- Loop style and placement - cross-corner standard; stevedore and tunnel loops available
- Fabric weight and coating options - confirmed against material and handling requirements
- Baffle bag configuration - internal baffles for shape retention where required
- Liner type and configuration - PE liner options; form-fit or loose
- Ventilated panel options - available where material requires airflow
- Print layout - branding, product identification, handling marks
Specifications reviewed by
Roman Fainshtein, FIBC specification lead, XTRX (a Sackora brand)
Specification FAQ
Questions that come up during specification review.
What is a duffle top on an FIBC bag?
A duffle top is a fabric sleeve or skirt sewn around the top opening of the bulk bag body. After filling, the duffle can be tied, cinched, or folded closed to contain the material during transport or storage. It provides a closure option without restricting fill access the way a spout top does.
How does a duffle top bag differ from an open top bag?
Both formats allow unrestricted top filling. The duffle top adds a fabric closure that can be tied after filling. If your operation does not require any post-fill closure, the open top is simpler. If your material, transport conditions, or customer requirements call for a covered bag, the duffle top handles that without adding a spout.
What materials are suitable for duffle top flat bottom bags?
Common applications include food ingredients, plastic pellets, seeds, dry blended powders, and agricultural inputs where some degree of post-fill containment is useful. The duffle top is also used where dust generation during transport is a concern and a loose-tie closure is sufficient.
Can duffle top flat bottom bags be used for food ingredient applications?
Food-grade requirements are confirmed at project review. Liner options, body fabric, and closure method are all part of that discussion. XTRX does not make blanket food-grade claims - suitability depends on the specific material, handling environment, and buyer requirements.
Do you offer liner options?
Liner options can be discussed during the RFQ process when the application, material characteristics, and handling requirements call for additional containment or barrier support.
How do I request a quote?
Use the RFQ form to provide company details, product interest, estimated quantity, bag dimensions, fill material, delivery destination, and timeline. That structure helps qualify requests and speeds up next-step conversations.
Do you supply customers across Canada?
XTRX is positioned as a Canada-wide supply partner for qualified buyers. Coverage messaging is national, with support for quote discussions involving Ontario, Quebec, Alberta, British Columbia, and other provinces.
Compare Nearby Formats
Adjacent configurations worth reviewing.
These formats are worth comparing if your application has requirements this configuration does not fully address.
Duffle Top / Discharge Spout Bottom FIBC Bags
A hybrid bulk bag combining wide-access top filling with a controlled bottom discharge spout - for operations where fill flexibility and discharge precision are both required.
Full Open Top / Flat Bottom FIBC Bags with Liner
Maximum top fill access with built-in liner compatibility - for materials that need a barrier layer and a wide-mouth loading format.
Ready for a Quote?
Share your dimensions, material, and estimated volume.
The RFQ form is designed to capture the details procurement and operations teams usually want to align on early. The faster you provide them, the faster the quote conversation moves.