Storage Wallet Buyer's Guide: Sizes, Closures and Materials

What a storage wallet is

A storage wallet is a flat or lightly gusseted sleeve used to hold and carry a set of documents, usually with a closure so the contents cannot fall out. It sits between a simple document wallet, which is often just an open sleeve, and a box file, which is a rigid archive container. The storage wallet is the piece a buyer reaches for when a project file has to travel between offices, when a set of drawings has to go to site, or when a stack of paper has to be grouped and shelved without being punched and bound.

The distinction matters because the storage wallet is judged on hold and carry, not only on cover. A buyer specifying one is really choosing three things: the material, the closure and the gusset depth. This guide works through each, then covers sizes and print.

Materials: PP, PVC and EVA

Polypropylene, usually shortened to PP, is the lightest and most economical option. It is a semi-rigid film with a slight flex, it is naturally translucent, and it is available in a wide range of tints. PP is the usual pick for a high-volume office wallet where a clear or tinted cover is enough and the wallet is not expected to take hard handling.

PVC is denser and more rigid, and it takes a strong weld and a clean print. It carries a heavier document load without bowing and it wipes clean, which suits a wallet that is used on site or in a workshop. EVA is the softest of the three: it is a thicker, rubbery sheet with a textile-like finish, and it is chosen when the wallet has to be flexible, sewn, or given a soft feel rather than a hard plastic look. EVA wallets are common where the product is handled as much as read, such as a sample or a swatch set.

Closure types

The closure is the part that fails first on a wallet, so it is worth matching it to the use rather than to the look. An elastic band is the fastest and the cheapest to replace, which makes it the default for a wallet that is opened many times a day. A zip is the right answer when the contents are loose or small enough to slide out of the side. A tuck flap is the most economical and is fine for a flat paper file that stays on a shelf.

Gusset and capacity

A flat wallet holds a thin set and stays slim on a shelf; a gusseted wallet opens at the base or the side so it can expand as the file grows. The gusset is measured as a depth, so a wallet with a wide gusset will hold a much thicker file than a flat one of the same cover size. A buyer who expects a project file to grow during its life should specify a gusseted wallet from the start, because a flat sleeve that is overfilled will bow and the closure will not meet.

For a wallet that has to expand further, an accordion or concertina gusset divides the interior into sections, which lets one wallet carry several sub-files rather than one block. That is the usual choice for a wallet that replaces a stack of separate folders on a single account.

Sizes and how to read them

Storage wallets follow the document sizes they are built for. An A4 wallet takes A4 paper, and a Foolscap wallet takes the longer Foolscap sheet used in some markets; a Letter wallet matches the North American sheet. The cover size is always a little larger than the paper size, because the wallet has to clear the sheet plus any punched edge, and a gusseted wallet is wider again so the file can open.

A buyer exporting to more than one market should fix the paper size first and then the wallet size, rather than the other way round. A wallet sized for A4 will not take a Letter sheet without bending it, and a range that mixes the two without labelling the difference is a common source of returns.

Print and branding

PP and PVC wallets are printed by screen printing or UV digital printing, and the print can run across the front, the flap or both. A translucent wallet shows the contents, so the print is usually placed on the flap or the edge to leave the face clear. An EVA wallet is often finished with a sewn patch, an embossed logo or a printed label rather than a direct screen print, because the soft surface takes a different kind of decoration.

Because the wallet is a repeat-use product that sits on a desk or in a bag, it is a good carrier for a brand. A distributor who orders one colour and one logo can hold a single stock line and supply every department from it, which keeps the range simple.

How ZOKABS produces storage wallets

ZOKABS makes document wallets and storage wallets on the same lines as its folder range, in PP, PVC and EVA, with the closure, the gusset and the print all set from the customer drawing. The welds are made in-house, so the seal on a gusseted wallet is checked as part of the run rather than bought in pre-made.

Because the material, the closure and the gusset are separate choices, a customer can specify a wallet that is exactly as slim or as expandable as the file it has to carry. Where a customer is replacing a mixed set of folders with one wallet, the accordion gusset is usually the first option we suggest, because one well-divisioned wallet can do the work of several flat sleeves.

Questions buyers ask

What is the difference between a document wallet and a storage wallet?

A document wallet is often a simple open sleeve for a flat set of paper. A storage wallet adds a closure and usually a gusset, so it holds a thicker file and keeps it closed while it is carried.

Which material should I choose for a wallet that is used outdoors?

PVC is the usual pick, because it is rigid, wipes clean and does not soften when it is damp. PP is lighter and cheaper but less rigid, and EVA is the softest of the three.

How do I know how much a gusseted wallet will hold?

The gusset depth tells you. A deeper gusset opens wider and takes a thicker file. If the file is expected to grow, specify a gusset wide enough for the final thickness rather than the starting one.

Can one wallet hold several separate files?

Yes, if it is made with an accordion gusset, which divides the interior into sections. That lets one wallet carry several sub-files instead of one block of paper.