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A hard-shell protective pouch open like a clamshell, a cut foam cavity holding a lens barrel.
Top-down cutaway of a packed case with fill pads slotting into the voids between contents.
Top-down cutaway of a packed case with fill pads slotting into the voids between contents.
Three foam sample blocks of different thicknesses standing on edge, cut faces to camera.
Three foam sample blocks of different thicknesses standing on edge, cut faces to camera.

D · Interior Cushioning

Corner Cushion Set

The inside answer to the outside corner guard. Braces the four interior corners from within.

USD 22

One-time purchase. No subscription.

Free standard shipping over USD 49.

How it is built

Four moulded 15 mm foam blocks shaped to sit into the interior corners of a case. They keep packed contents off the corner itself, which is the point where the shell deflects furthest under an impact.

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.

Specification

Material
Moulded 15 mm closed-cell foam, four blocks
Quantity
Four blocks
Thickness
15 mm
Block size
120 × 120 mm on the two faces
Foam
Moulded closed-cell
SKU
D-06

Where those figures come from

Corner impact test
Free fall from 1.0 m onto a rigid steel plate, case loaded to 15 kg, impact on the lower shell corner, five repeats per sample, three samples, conducted at 23 °C.
Foam density
Closed-cell EVA, apparent density measured per sample block at 23 °C and 50 % relative humidity, three samples averaged.

Elsewhere in Interior Cushioning

Open the line
An inflatable air-column sleeve holding a plain bottle, with a flat unfilled sleeve beside it.D-01

D · Interior Cushioning

Bottle Sleeve 2

Two sleeves for the two bottles you were going to wrap in a jumper and hope for the best.

USD 18

An inflatable air-column sleeve holding a plain bottle, with a flat unfilled sleeve beside it.D-02

D · Interior Cushioning

Bottle Sleeve 4

Four sleeves and four sealed bags, on the assumption you are not bringing back just the one.

USD 28

A rolled sheet of grey closed-cell foam partly unrolled, one corner already cut away.D-03Cut to size

D · Interior Cushioning

Foam Wrap Sheet

For the shape that no moulded product fits. Cut it to the object — and once cut, it stays yours.

Material depth
5 mm

USD 24