What bags are allowed at concerts? Size rules explained

If you’re on the hunt for the best concert bag or a festival-approved backpack, there are a few details worth checking before you buy: the recommended size, the material, and the weight.

Just like in our guide to power banks for concerts, the advice here is the same. It’s worth investing in a bag or backpack that fits within the smallest size allowed, for peace of mind and so you can use it at almost any show in the world.

Every venue or festival can have its own rules. Some events are more relaxed than others when it comes to bag and backpack size. But there’s one measurement accepted almost everywhere: the A4 format (the size of a standard sheet of printer paper, roughly 8.3 x 11.7 in / 21 x 30 cm).

Quick note here: specifically for major shows in the United States, there’s a recommendation to use only clear (transparent) bags and backpacks. That doesn’t apply to the rest of the world. A clear bag can help you move through security faster, but it isn’t a requirement outside the US.

To help you choose, we compared several models across three formats — mini backpacks, crossbody bags, and fanny packs (bum bags) — all within what’s typically allowed at both big and small shows.

Earplugs for concerts: how to protect your hearing

What a good concert bag or backpack needs

Here’s what’s worth paying attention to before buying a bag or backpack for shows:

Security: look for a zip closure (avoid bags that close only with a button or magnetic snap, which are easier to open without you noticing in a crowd)

Size: within the A4 format (roughly 8.3 x 11.7 in / 21 x 30 cm), the most widely accepted measurement worldwide

Weight: ideally as light as possible, especially if you’re going to be standing for hours at a stadium show. I’d suggest looking for bags, backpacks, and fanny packs finished in nylon, since they tend to be lighter and won’t soak through in light rain.

Mini backpacks for concerts

Backpacks are a great choice if you’d rather keep your hands free and enjoy the show without holding a bag on your shoulder all night. They distribute weight better and are ideal for stadium shows, festivals, for anyone getting in line early, or for parents bringing young kids to a show who need to carry extra gear.

Finding a backpack in true A4 size isn’t easy. Because of how they’re constructed, mini backpacks are usually your best bet for hitting that size.

Here’s a story from my own experience. I went to a show at the Max-Schmeling-Halle, an arena in Berlin, Germany, and it was the first time security ever gave me trouble over my backpack size. It was one of those thin, foldable nylon ones — about 16 in tall by 8 in wide (roughly 40 x 20 cm), with no structured base and basically no depth. The security staff said I couldn’t come in because it exceeded the allowed dimensions. Since it was practically empty, I took everything out, folded it down (it zipped shut into a small pouch), and asked if I could go in like that. Security said yes. Once inside, though, since I had a seat, I ended up unfolding it again, put my things back in, and tucked it under my seat to stay discreet. After that trip, I bought an actual mini backpack.

Crossbody bags for concerts

The crossbody bag is the go-to for anyone who wants their essentials within reach without holding anything during a show. They also tend to be more discreet at security checks. There’s more variety in styles and models here, since most crossbody bags are naturally smaller than A4 to begin with. For this format, comfort and security are what matter most.

Fanny packs (bum bags) for concerts

The fanny pack is the most discreet, versatile, and lightweight option. It’s a great choice if you only need to carry a few essentials, and you can wear it around your waist or across your body. There are also holster-style pouches designed to be worn underneath your clothing.

What about gym-style drawstring bags?

A common question from concertgoers is whether you can use a drawstring gym sack — the kind you get free at festivals or gyms — for a show. The answer: it depends on the size. Most of these bags are sold larger than the A4 format, so we wouldn’t recommend buying one specifically for concerts.

That said, if you already have one at home, it’s worth measuring it before deciding. Many promotional drawstring bags are smaller and fit within the limit without any issues, on top of being practical and lightweight. Some shows also allow bags and backpacks larger than A4 size, so it’s always worth checking the venue’s or event’s specific rules ahead of time.

Good to know: why the A4 format is the safest benchmark

The A4 format wasn’t chosen at random by venues around the world. It’s an internationally recognized measurement (roughly 8.3 x 11.7 in / 21 x 30 cm), it’s easy for security staff to check visually, and it’s small enough not to get in the way of crowd flow at packed venues.

That said, remember: every event has its own rules, and some are stricter than others. So the most honest advice we can give is this: choose a fanny pack, bag, or backpack that’s A4 size or smaller. When in doubt, always go with the most compact option you have.

Rock in Rio Lisboa, for example, caps bags at A4 size. Rock in Rio in Brazil states that backpacks, bags, and fanny packs must be small, without specifying an exact measurement. As an example from a well-known international venue, London’s O2 Arena allows bags and backpacks up to A4 size. Meanwhile, the Sphere in Las Vegas is one of the strictest venues in the world, allowing bags no larger than roughly 6 x 6 in (15 x 15 cm).

What happens if my bag is bigger than allowed?

In most cases, event security will ask you to check your bag at the coat check or bag check, if the venue offers one (and there may be a fee). At some events, you may need to head back to your car, home, or hotel to drop off the item before getting in line again, or find a nearby storage option, like luggage lockers at a train station.

That’s why the safest bet is not to take the risk at all: bring a bag or backpack within the allowed size and skip the hassle entirely.

What should you pack in your bag for a concert?

The essentials for a show usually include: your phone (with your digital ticket and payment cards), a small portable charger, a wallet and/or cards, keys, tissues, and a rain poncho if it’s an outdoor show.

I’d also recommend high-fidelity earplugs — still a bit of an under-the-radar item for many people, but one that protects your hearing without sacrificing sound quality. Most of us only appreciate how important they are after dealing with ringing ears the next day…

Best power bank for concerts: what to look for before you buy

What’s not allowed at concerts and festivals?

This varies from show to show, but the most commonly banned items at major concerts and festivals include: bottles, sharp objects, fireworks and flammable materials, umbrellas, helmets, aerosol deodorants, pepper spray, and similar items.

Since this list changes from event to event, the official rules for the specific show you’re attending are always the most reliable source. Always double-check before you pack your bag.

Is a clear bag mandatory at festivals?

No. A clear or transparent bag isn’t a requirement at every festival worldwide. Most events accept regular bags and backpacks, as long as they’re within the allowed size. However, at stadiums and arenas specifically in the United States (and some in Mexico), the clear bag policy is quite common, especially for sporting events and some large-scale concerts.

If your next show is in the US or Mexico, it’s worth checking that specific venue’s policy ahead of time.

What bag material holds up best in the rain at a festival?

Materials like nylon, PVC, and faux leather hold up well against water, especially in light or brief rain. Just keep in mind that not all of them are fully waterproof, so they may still let water through during heavier or prolonged rain. Check the manufacturer’s specs to see whether an item is water-resistant or fully waterproof.

If you’re heading to an outdoor festival and rain is in the forecast, it’s worth adding extra protection by keeping your phone and documents in a small plastic bag inside your bag. That alone usually does the trick. 🙂