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A small combination padlock clipped through the two zipper pulls of a travel case.
A case at an inspection bench, its cover still fitted with only the access zipper opened.
A case at an inspection bench, its cover still fitted with only the access zipper opened.
Three identical combination padlocks in a row on concrete, shackles open.
Three identical combination padlocks in a row on concrete, shackles open.

B · Locks & Straps

Combo Lock 3

The basic closure. It keeps a zipper from walking open in transit. That is the whole job.

USD 12

One-time purchase. No subscription.

Free standard shipping over USD 49.

Not sure it fits?

Security screeners in many countries can open checked baggage, including locked baggage, without you present. Do not lock valuables into checked baggage. This is a closure for transit, not a security device.

California Proposition 65WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

How it is built

A zinc alloy body with a three-dial resettable combination and a 3 mm hardened steel shackle. It clips through two zipper pulls and holds them together.

Suits these shells

Hard shell, polycarbonate
Flexes under load and springs back. Takes surface scuffing more than cracking.
Hard shell, ABS
Stiffer and more brittle than polycarbonate. Corners are the usual failure point.
Aluminium frame
A full cover fits badly over the frame lip. Corner and edge guards suit these better.
Soft side, fabric
Absorbs impact but scuffs and tears. Zippers and handles take the strain.

Specification

Material
Zinc alloy body, 3 mm hardened steel shackle, ABS dials
Combination
3 dials, resettable, 1,000 codes
Shackle
3 mm diameter, 22 mm clearance
Body
Zinc alloy, 38 × 22 × 12 mm
Weight
46 g
SKU
B-01

Where those figures come from

Lock body
Shackle diameter and clearance measured with digital callipers on ten units from one production lot, the smallest clearance reported.

Elsewhere in Locks & Straps

Open the line
A small combination padlock clipped through the two zipper pulls of a travel case.B-02

B · Locks & Straps

Combo Lock 4

For cases whose zipper pulls sit too far apart for a short shackle to reach both.

USD 16

A braided steel cable lock looped once around a telescopic case handle.B-03

B · Locks & Straps

Cable Lock

A flexible shackle, so you can loop it round a handle or through two cases instead of just two pulls.

USD 22

Two woven straps crossing at right angles over the face of a hard-shell case.B-04

B · Locks & Straps

Strap 2m

For the case that comes home fuller than it left. Holds the shell together when the zip line is under load.

Fits
51–76 cm / 20–30 in
Rated load
1,200 N

USD 14