
Zippers fail from wrong sizing
A #5 zipper on a stuffed 30 L main compartment will split within a season. We size by load, not by price, and cycle-test every article.
Hardware & trims
Hardware is where a bag feels premium or cheap in the hand - and where it fails first. We specify, source and test every zipper, slider, buckle, hook, ring, lock and trim on your bag, apply your logo to the parts buyers touch, and match one finish across all of them. 31 component types below, photographed and explained.






Why it matters
A split slider, a cracked buckle or a pull that falls off costs more than the part: it costs the review, the return shipping and the re-order. This page is how we prevent that.

A #5 zipper on a stuffed 30 L main compartment will split within a season. We size by load, not by price, and cycle-test every article.

Recycled or under-specified plastic goes brittle in cold and UV. We use virgin POM from audited moulders and cold-crack test every sample.

Thin plating shows red rust after one Gulf summer. Our metal parts pass 24-48 h salt spray and can be nickel-free for the EU.
01 / 6
The component most likely to fail - and the first thing a buyer tests. Four constructions, sized from #3 to #10.

The standard for 90% of bags: flexible, smooth, self-healing if forced. #3 pockets, #5 general, #8-#10 main compartments.

Brass, antique brass, gunmetal or nickel teeth for fashion, heritage and premium business bags. Heavier and stiffer than coil.

Reversed coil with PU/TPU-laminated tape. Sheds water on travel, outdoor and electronics bags; airtight versions for dry bags.

Injection-moulded resin teeth: chunky, light, corrosion-free. Luggage, duffels, cooler bags and kids bags in bright colours.
Size is the chain width in millimetres, roughly. Bigger is stronger, heavier and more expensive; matching the size to the load is what stops failures.
| Size | Chain width | Typical use on bags | Slider / pull | Cycle test |
|---|---|---|---|---|
| #3 | ~4 mm | Small pockets, organiser panels, pouches | Non-lock, small pull | 3,000 |
| #5 | ~6 mm | Front pockets, laptop sleeves, tote tops, packing cubes | Non-lock or auto-lock | 5,000 |
| #8 | ~8 mm | Main compartments on backpacks and duffels | Auto-lock, double slider | 5,000 |
| #10 | ~10 mm | Luggage, large duffels, tactical, cooler bags | Auto-lock, lockable double slider | 8,000 |
02 / 6
The most-touched part of a bag and the most visible place for your logo.

Zinc-alloy slider body with your logo cast or engraved on the pull. The most visible branding point on any zipper.

Laser-engraved or stamped logo on a shaped metal tab. Nickel, black, gunmetal, gold and antique finishes.

Spring pin locks the slider in place so a loaded bag does not creep open. Standard on main compartments and laptop sleeves.
Injection-moulded PVC or silicone in any Pantone with 2D/3D logo. Soft touch, glove-friendly, low MOQ.

Braided cord loop with heat-shrink or moulded end. The tactical and outdoor standard; silent and works with gloves.

Folded leather or PU tab with debossed or foil logo. Premium business, fashion and heritage lines.
03 / 6
Everything that lets a strap be shortened, released or clipped.

Quick-release for sternum, waist and compression straps. POM plastic is the workhorse; aluminium or magnetic for premium.

The shoulder-strap length adjuster on every backpack. Curved versions follow the strap; metal for heavy loads.

Fixed-length strap adjuster for messenger, tote and duffel shoulder straps. Metal versions read as premium.

Spring-loaded cam grips webbing under load; instant release. Compression straps, ski and board carry, cargo bags.

Low-profile hook that drops into a webbing loop. Detachable straps, roll-top closures, tactical and minimalist designs.

Belt-style buckle with roller for leather and webbing straps on satchels, briefcases and heritage backpacks.

Sliding rail clip plus mini side-release buckle; often with a whistle buckle for hiking packs.
04 / 6
Attachment and reinforcement hardware.

Detachable shoulder straps on messenger, duffel and laptop bags. Swivel stops the strap twisting.

Attachment points for straps, keys and accessories. Welded rings for load-bearing; cast for decorative.

Round carabiner that opens with a spring gate. Key clips, accessory loops and strap connectors on fashion bags.

Drawstring channels, drainage holes, shoe-compartment ventilation and headphone ports.

Reinforce handle bases, strap anchors and decorative seams. Screw-back versions for leather.
05 / 6
Snaps, turn locks and combination locks for flaps, pockets and security lines.

Hidden or visible magnet closure for flaps, pockets and tote tops. 14 or 18 mm; sewn or riveted.

Four-part spring snap for pocket flaps, strap keepers and roll-top wings.

Rotating lock for flap bags, briefcases and premium mini backpacks.

Press-to-open catch for satchel and briefcase flaps.

Recessed 3-digit lock that captures both zipper pulls. Travel, anti-theft and laptop backpacks.

Spring stopper for drawstring closures, hood cords and compression cords.
06 / 6
Feet, nameplates and webbing that finish a bag at the detail level.

Four or five base studs keep the bottom off the floor. Dome, bucket or flat profiles.

Stamped, cast or laser-cut nameplate riveted or sewn to the front panel. The signature branding piece.

Polyester (standard), nylon (stronger, softer) or PP (economy) in 15-50 mm, dyed to Pantone, jacquard-woven logos.
Specification guide
A starting spec for your tech pack. Each row is what we would propose if you sent us only a bag type and a target price.
| Bag type | Main zipper | Strap hardware | Closures | Typical finish |
|---|---|---|---|---|
| School backpack | #8 coil, auto-lock | POM ladder lock 25 mm, side-release sternum clip | Rubber pulls, eyelets on side pockets | Black POM, nickel |
| Laptop / business backpack | #8 coil or #5 metal | Aluminium ladder lock, luggage strap, metal pulls | Magnetic snap, TSA lock option | Gunmetal, matte black |
| Hiking backpack | #8-#10 waterproof coil | Curved ladder locks, cam buckles, G-hooks, load lifters | Cord locks, hydration port grommet | Black POM, anodised aluminium |
| Tactical backpack | #10 coil, oversized pulls | Metal G-hooks, 25 mm side-release, D-rings | Paracord pulls, hook-and-loop fields | Coyote, ranger green, black |
| Travel / rolling backpack | #10 coil, lockable double slider | Swivel hooks, stow-away strap buckles | TSA combination lock, luggage strap snap | Gunmetal, matte black |
| Cooler backpack | #10 Vislon or waterproof | Padded strap ladder lock, bottle-opener D-ring | Cord locks, side-release lid buckle | Bright POM colours |
| Duffel / weekender | #8-#10 coil or metal | Swivel snap hooks 38 mm, tri-glides, leather roller buckle | Snap keepers, bag feet | Antique brass, gold, nickel |
| Tote bag | #5 coil (optional) | Rivets at handle base, D-rings for key clip | Magnetic snap, turn lock on premium | Gold, brass, gunmetal |
| Mini / fashion backpack | #5 metal | Roller buckles, spring-gate rings | Twist lock, tuck lock, magnetic snap | Gold, rose gold, silver |
| Gym / sports bag | #8 coil | POM side-release, ladder locks, swivel hook | Eyelets on shoe compartment, cord locks | Black POM, colour-matched |
Finishes
Sliders, pulls, buckles, rings, feet and nameplate are plated in the same bath and approved together on a hardware card with your sample.

Mirror silver; the default on business and school hardware. Nickel-free plating available for EU.

Matte silver that hides fingerprints; premium business lines.

Dark grey-black metallic; laptop, tactical-lifestyle and streetwear.

Fully black, non-reflective; tactical and minimalist designs.

Warm aged brass; heritage, canvas and leather-trim bags.

Fashion totes, mini backpacks, cosmetic bags.

Women's fashion and beauty lines.

Powder or spray coat on metal, or moulded colour on POM, matched to your fabric.
Your logo on the hardware
Hardware branding is what a customer sees in the unboxing video. Choose by quantity and finish.

Laser or stamp your logo into a zinc-alloy pull tab; any of the eight finishes.
From 500 pcs

Your logo as part of the slider body itself - the premium standard.
From 5,000 sliders
Injection-moulded PVC in your Pantone with raised or recessed logo.
From 500 pcs

Stamped, cast or cut-out plate with enamel fill, riveted to the front panel.
From 500 pcs

Logo moulded into the face of side-release or ladder-lock buckles.
From 3,000 pcs or mould fee

Logo woven into the strap itself, repeating along the length.
From 1,000 m
Testing
Every article is tested on the pre-production sample; plated parts are salt-spray tested per batch. Requirements below are our internal minimums.
| Test | Method | Requirement | Applies to |
|---|---|---|---|
| Zipper cycle | Open/close on rig | #5: 5,000 cycles; #10: 8,000 cycles, no slider slip | All zippers |
| Slider pull-off | Tensile on pull | > 8 kg (pulls), > 15 kg (slider body) | Sliders, pulls |
| Buckle tensile | Static load | POM 25 mm > 80 kg; metal 25 mm > 150 kg | Buckles, G-hooks |
| Ring / hook load | Static load | Welded D-ring > 100 kg; swivel hook > 60 kg | Rings, hooks |
| Salt spray | ISO 9227, 24-48 h | No red rust, no plating blister | All plated metal |
| Cold crack | -10 C, 4 h, then flex | No cracks in POM or PVC | Plastic buckles, rubber pulls |
| Nickel release | EN 1811 | < 0.5 ug/cm2/week | EU-bound metal parts |
| Magnet pull | Separation force | > 1.0 kg (14 mm), > 1.5 kg (18 mm) | Magnetic snaps |
How it works
Send your bag reference, target price and market. We list every hardware point on the bag.
A hardware list with size, material, finish and logo method per item, priced at 100 / 500 / 1,000 pcs.
Physical samples of each part in the chosen finish, mounted on a card and shipped with the bag sample.
Cycle, load and salt-spray results on the pre-production sample; you sign off the card.
Hardware checked at incoming QC against the card, then in-line every 200 bags.
On the line
A finished side panel with built-in USB charging port; functional features customised to buyer requirements.
Front panel production with attention to stitching, construction and workmanship.
An experienced technician processing backpack components on new equipment with precision.
A photo, a sketch or a competitor sample is enough. You get a hardware list with sizes, finishes and logo methods, priced at 100 / 500 / 1,000 pieces, within 12 hours.
Hardware inquiry
Send a photo, sketch or reference sample. You receive a hardware list with sizes, finishes and logo methods, priced at 100 / 500 / 1,000 pieces, within 12 hours.
