Sealock makes custom duffle bags for sports and outdoor brands, travel and lifestyle labels, team and club suppliers, retailers and corporate programmes. We build them two ways in our own factories: sewn duffles in coated polyester or nylon for the gym, sport and travel, and high-frequency welded waterproof duffles in TPU or PVC for boats, motorcycles, expeditions and wet weather. Either can be made in your size, colours and design, with your logo. Our minimum order is 300 pieces per style, which suits a product line, a team or league programme or a large corporate order, not a handful of monogrammed gifts.
This page explains how to choose the construction, what can be customised, which logo methods suit which material, what drives the price and how long an order takes. We have made bags since 2001, over 20 years, at our factories in Dongguan, China and Ho Chi Minh City, Vietnam, and supply soft goods to brands including YETI, STANLEY, Helly Hansen and OSPREY.
Sewn or Welded: The First Decision
The construction decides almost everything else: how the bag looks and feels, how much water it keeps out, which logo methods can be used and what it costs. A sewn duffle is cut from PU-coated polyester or nylon and stitched, usually with bound edges and a storm flap over the zip. It is light, soft, easy to pack into a locker or an overhead bin, and the least expensive to make. It takes embroidery and woven labels as well as printing, and it comes in the widest choice of fabrics and colours. It sheds rain and a wet towel but is not waterproof. This is the right construction for gym bags, team bags, weekend bags and most corporate orders.
A welded duffle is made from TPU-laminated or PVC-coated fabric joined by high-frequency welding, so there are no needle holes in the shell. Closed with a roll-top or an airtight zipper it can be rated IPX7, which means the main compartment stays dry if the bag goes into the water. It is heavier and stiffer than a sewn bag and costs more, and it is the right choice for brands selling to paddlers, anglers, boat owners, motorcyclists and overlanders. Both constructions are made in-house by our own teams, and our sewing lines work to the same quality standard as our welding lines, so a brand can order both as one range. Our TPU waterproof material guide explains how the welded materials differ.
What You Can Customise
| Element | Options |
|---|---|
| Size | About 20 to 90 litres; carry-on sizes around 40 litres; team bags sized to a kit, helmet or boots |
| Material | Sewn: PU-coated 600D polyester, nylon, ripstop, recycled polyester. Welded: 420D–840D TPU, 500D PVC tarpaulin |
| Colour | Pantone-matched body, webbing, zip tape and pulls; two-tone panels; team colours |
| Closure | Top zip with storm flap, U-shaped zip, roll-top, airtight waterproof zipper |
| Carry | Grab handles, padded shoulder strap, stowable backpack straps, end handles, wheels |
| Compartments | Ventilated shoe compartment, wet pocket, end pockets, internal zip pocket, laptop sleeve |
| Packaging | Hangtag, barcode, polybag, dust bag or gift box for retail and corporate gifting |
Starting from one of our existing models and changing the colours, logo and details is the quickest and least expensive route. You can also send a sketch, tech pack or reference bag and we will develop a new duffle from the ground up; a new pattern or welding tool adds time to sampling. If capacity is the open question, our guide to what size duffel bag you need helps pick the size range.
Logo Methods, and Which Construction They Suit
On a sewn duffle almost every method is available. Embroidery is the most common for sports, team and corporate bags and lasts as long as the bag. Woven labels and rubber or silicone patches give a retail finish. Silk-screen and heat-transfer printing suit larger artwork, and player names or numbers can be heat-transferred individually for team orders.
On a welded waterproof duffle, nothing may be stitched through the shell, because every needle hole is a leak. The methods that keep it sealed are silk-screen printing, heat transfer, a welded TPU or PVC logo patch, and embossing, plus a branded zipper pull or buckle. Send artwork as a vector file with Pantone references and tell us where it should go. Our guide to logo methods on waterproof bags compares how each one wears.
MOQ, Sampling and Lead Time
MOQ is 300 pieces per style for both sewn and welded duffles, and colours can usually be split within one order. Samples take about 7–15 days for a duffle based on an existing model; a new design takes longer. Bulk production takes about 30–45 days after the sample is approved, and up to 60 days for complex designs or peak-season orders. Allow extra time for third-party inspection and shipping. Production can be placed in China or in Vietnam, which gives buyers a choice of origin when planning for tariffs.
We do not offer "no minimum" orders or single monogrammed bags. For fewer than 300 pieces, a promotional products distributor that embroiders stock bags is the better route; for a team or league programme, a club supplier can consolidate several teams into one order that meets the minimum.
What Drives the Price
Construction comes first: a welded waterproof duffle costs considerably more than a sewn one of the same size, and an airtight zipper adds more again. After that come the size and fabric weight, the number of compartments and pockets, the carry system (backpack straps or wheels add cost), the logo method and number of colours or stitches, the packaging and the order quantity. A new welding tool or pattern is a one-off cost. For a quotation, send us the use, size, construction, artwork, quantity and target price.
Base Models You Can Customise
| Image | Model | Capacity | Dimensions (H × W × D) | Weight | Construction | Use |
|---|---|---|---|---|---|---|
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SL-C446 Sports Duffel Bag | 35 L | 28 × 48 × 26 cm (11.0 × 18.9 × 10.2 in) | 1.0 kg (2.2 lb) | PU-coated 600D polyester, sewn with bound edges; top zip under storm flap; backpack straps; water-resistant | Gym, team and weekend bags; embroidery-ready |
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SL-C261 Waterproof Duffel Backpack | 25 L | 26 × 48 × 26 cm (10.2 × 18.9 × 10.2 in) | 1.35 kg (3.0 lb) | TPU-laminated 420D nylon, high-frequency welded; airtight main zip; IPX7 main compartment | Travel and water sports; duffel, shoulder or backpack carry |
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SL-C031 Roll-Top Waterproof Duffel | 40 L | 50 × 53 × 25 cm (19.7 × 20.9 × 9.8 in) | 1.1 kg (2.4 lb) | 420D TPU or 500D PVC tarpaulin, high-frequency welded; roll-top and buckles | Camping, boating and motorcycle trips |
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SL-C108 Dry Duffel Bag | 45 L | 41 × 61 × 35 cm unrolled (16.1 × 24.0 × 13.8 in) | 1.3 kg (2.9 lb) | 500D PVC tarpaulin, high-frequency welded, seamless; roll-top with buckles at both ends; IPX7 main compartment | Rafting, kayaking, expeditions |
See the full waterproof duffel bag range. For duffles that also carry as a backpack, see our article on duffels with backpack straps; and for wheeled versions, our guide to the waterproof rolling duffel bag.For backpacks in the same range, see our guide to custom backpacks.
How We Control Quality
Every order passes through IQC on incoming fabric, zippers, buckles and webbing, IPQC during sewing, welding and assembly, and OQC on finished bags, with SGS or QIMA third-party inspection available on request. Seams are tested for tensile strength on sewn bags and bonding strength on welded ones. Handles, shoulder straps and strap anchors, the parts that fail first on a loaded duffle, go through a load test of 1,500+ cycles, and zippers are opened and closed 3,000 times. Buckles and zipper pulls are tested in salt spray, fabric is tested for abrasion, and colour fastness and colour difference are checked against the approved sample so team and brand colours match across the order. IPX7 welded duffles are verified with a full water-immersion test of 2+ hours.
Frequently Asked Questions
What is the minimum order for custom duffle bags?
300 pieces per style, for both sewn and waterproof duffles. Colours can usually be split within one order.
How much do custom duffle bags cost?
The price depends on construction, size, fabric, compartments, carry system, logo method and quantity. A welded waterproof duffle costs more than a sewn one. Send us your specification, artwork and quantity for a quotation.
Can you embroider our logo on a duffle bag?
Yes, on sewn duffles. On waterproof duffles we use printing, heat transfer, welded patches or embossing instead, because embroidery would pierce the waterproof shell.
Do you make custom team and gym duffle bags?
Yes. Sewn sports duffles with shoe compartments, team colours and embroidered or printed logos are a standard part of our range, from 300 pieces per style.
How long does a custom duffle order take?
About 7–15 days for samples and 30–45 days for bulk production after approval, or up to 60 days for a complex new design.
Are your duffle bags waterproof?
Our welded TPU and PVC duffles are; roll-top and airtight-zip models are rated IPX7. Our sewn duffles are water-resistant, which is right for the gym and travel.
Start Your Custom Duffle Bag Order
Send us the use, size, construction, logo artwork and quantity, and we will reply with a recommendation and a quotation, then make samples and plan production in China or Vietnam. Contact us at info@sealock.com.hk or call +86-769-82009361.