Ita Bag Size Guide: How Many Pins Fit — and Which Size to Buy

Window Size and What It Means

The display window matters more than the outer bag size. It tells you how much merch you can actually show.

The three measurements that matter are width, height, and depth.

• Width × Height (W×H) — the visible area of the window. Larger = more pins. A 20×25cm window gives significantly more display room than a 15×18cm window.
• Window depth — the front-to-back distance inside the window pocket. Flat pins need 2–4cm depth. Plushies need 5–8cm depth minimum.
• Insert pocket dimensions — where the insert board sits. Always measure the interior of the pocket, not the outside of the bag.

Pin Capacity by Window Size

Capacity estimates assume standard 25–32mm enamel pins with 5–8mm spacing between pins. Pins larger than 40mm will reduce capacity.

Plushie and Figure Fit

For plushie builds, depth matters more than width alone. A plush can fit the height of the window and still fail if the front panel presses too hard against it.

The window needs enough front-to-back room for the plush to sit naturally. If the face is flattened, the bag is the wrong format for that setup.

For plushie-first setups, deeper bags are usually the safer choice. See plushie ita bags and best ita bags for plushies if plush fit is your main priority.

Photocard Capacity

Standard K-pop photocards measure 5.5×8.5cm. In a clear top-loader sleeve (5.8×9cm), they fit flat against any insert:

• 15×20cm window: 12–18 photocards in a grid arrangement
• 20×25cm window: 20–30 photocards
• 25×30cm window: 30–45 photocards

Mixed builds (photocards + pins) should allow extra spacing around photocards — pin backs protruding from adjacent pins can scratch card sleeves. See: best ita bags for K-pop photocards.

How to Size Your Insert

The insert goes inside the display window pocket. To find the right size:

1. Open the display window zipper
2. Measure the interior width and height of the pocket — not the outside of the bag
3. Cut foam board or plastic canvas 2–3mm smaller on each side so it slides in and out easily
4. Test: the insert should sit flat and not bow; the zipper should close fully over it

If your bag includes an insert, the included board is already cut to fit. If not, buy foam board from a craft store or order from the inserts section.

Which Bag Format to Choose

• 10–20 pins or 1 small plushie: Mini ita bag or small crossbody. Light carry, focused shrine, good for everyday use.
• 20–40 pins or medium plushie: Medium crossbody or small backpack. Most popular format — versatile between daily carry and cons.
• 40–80+ pins: Full backpack format. Best for convention display builds; needs comfortable straps for all-day carry. See: best ita bags for conventions.
• Photocards only: Flat, shallow window any size. Width matters more than depth. See: best ita bags for K-pop photocards.
• School carry: Backpack with laptop sleeve. See: best ita bags for school.

Frequently Asked Questions

How many pins fit in an ita bag?
Depends on window size: 10–20 pins in a mini bag, 30–45 in a medium bag, 50–70+ in a large backpack. See the capacity table above for estimates by window size.

What size insert do I need for a 20×25cm window?
Cut your insert to approximately 19×24cm — 1mm smaller on each side to allow easy insertion and removal without forcing the zipper.

Will a 20cm plushie fit in a standard ita bag?
Only in bags with at least 8–10cm window depth. Standard flat-window ita bags have 3–5cm depth, which suits pins and photocards but not large plushies. See plushie ita bags for deep-window options.

What is the biggest ita bag window available?
The largest backpacks in the YourItBag catalog have windows up to 30×35cm. Exact dimensions are listed on each product page.

Shop Ita Bags

Browse by size or use case — YourItBag carries 500+ ita bag styles at every size point.

• Mini ita bags →
• Plushie ita bags →
• All ita bags →
• Best beginner picks →

A4 and Large-Capacity Ita Bags

Big ita bag belongs on this main guide because buyers need the same core checks: usable window size, insert access, carry comfort, closure, and material quality.

Readers also search for big ita bag, a4 ita bag, large capacity ita bag. These are best treated as variations of the main topic rather than separate products or separate guides. Compare the visible window, insert access, strap comfort, closure, and return policy before choosing a bag.

For color and shape variations, the most useful question is not whether the listing uses the exact same name. Check whether the bag supports the collection: flat space for pins and cards, enough depth for plushies, and a base color that lets the merchandise remain readable.

Use the size guide to confirm capacity, browse all ita bags for current options, and check accessories when the bag needs an insert or safer pin backs.

Questions Buyers Ask

Do I need a separate page for big ita bag?
No. It is a variation of this main topic, so keeping the advice here gives buyers one stronger and more complete page.

What should I check before ordering?
Confirm the visible window size, insert access, strap length, closure, material, and return policy. Product photos alone rarely show whether a bag will fit a specific collection.

How do I choose between two similar bags?
Choose the one that fits the merchandise and carry use. Window depth matters for plushies, flat area matters for pins and cards, and strap comfort matters for school or conventions.

Related Ita Bag Guides

Continue with the guide that matches the next decision in your build, whether that is choosing the bag, planning the insert, or refining the display.

• Custom Ita Bag Guide: Make, Commission or Customize One
• Ita Bag Community Advice: What Collectors Usually Recommend
• Mini Faux Leather Ita Bags: What to Buy and What to Check
• Where to buy ita bags: every source compared

Best For — and Not Best For — Each Size

💡 Always measure the visible window, not the outside bag dimensions. Decorative borders and hardware can reduce usable display space by 2–4cm on each side.

Frequently Asked Questions

How do I measure an ita bag window correctly?
Open the bag and measure the clear PVC opening from inside edge to inside edge — not the outside frame. Width × height in centimetres gives you the real display area. Subtract another 1cm on each side for the insert margin so pins near the edge stay fully visible through the window.

How many pins fit in a medium ita bag?
A medium crossbody window (approximately 25×30cm) holds 25–40 standard 58mm enamel pins with comfortable spacing. Fit drops to 18–25 if you use larger acrylic charms, rosettes, or badge covers. Fit increases if you use smaller 25mm pins or lay photocards flat without large inserts between them.

Can a small ita bag hold plushies?
Only very flat or very small plushies (under 8cm) fit comfortably in a small bag window. For plushies 10cm and above, use a medium or large window with confirmed depth behind the PVC panel. Always check the listed window depth (front-to-back measurement), not just width and height.

What is the right size ita bag for photocards?
Standard photocards (55×85mm) fit 3-wide in a window approximately 18–20cm wide. A small ita bag holds 9–12 cards in a 3×3 or 3×4 grid. A medium crossbody holds 15–24 cards. Choose a flat window with a removable insert for the cleanest photocard display.

What size ita bag do I need for a convention?
For a full convention day, use a large ita backpack (30×41cm window minimum). This allows 40+ pins plus a main compartment for snacks, cash, and con essentials. Check the strap type — backpack straps distribute weight better over long days than a single shoulder strap.

After choosing a size, check that the PVC window is clear before you load the insert; if it looks cloudy or smudged, use the foggy PVC window cleaning guide before pinning cards or badges in place.