The World Marathon Majors (AbbottWMM) — Boston, New York, London, Berlin, Chicago, and Tokyo — are the most prestigious marathons on the planet. With that prestige comes massive crowds and, unfortunately, heightened security. One of the questions runners ask every single year is simple: “What bags can I actually bring?”

The short answer: Backpacks are almost never allowed on the course itself, and waist packs/hydration belts are usually okay — but with strict limits that differ by race.

Here’s the complete, up-to-date (as of the 2025-2026 season) guide so you don’t get turned away at security.

1. Why Bag Policies Matter at the World Marathon Majors

Before diving into specific rules, it’s essential to understand why bag policies are non-negotiable at World Marathon Majors. These races attract tens of thousands of runners, plus hundreds of thousands of spectators, creating dense, high-risk environments. Bag rules aren’t just red tape – they’re a critical part of keeping everyone safe and ensuring the race runs smoothly.

Security concerns at major marathons

Large gatherings like marathons are potential targets for security threats. Unregulated bags could conceal dangerous items, putting runners, spectators, and staff at risk. WMM events work closely with local law enforcement and security agencies to develop bag policies that minimize these risks. By restricting certain bag types and implementing screening protocols, organizers can quickly identify potential hazards and maintain a secure environment.

Why bag rules are stricter at WMM races

Compared to local or regional marathons, World Marathon Majors have stricter bag policies for two key reasons: scale and visibility. With 25,000+ runners (and up to 50,000+ at races like New York City), even small disruptions from non-compliant bags can cause massive delays. Additionally, WMM races are globally televised and attract international attention, making them higher-profile targets. Stricter rules help organizers uphold safety standards while maintaining the race’s reputation as a world-class event.

Common mistakes runners make with bags

Many runners fall victim to avoidable mistakes with bags, leading to security hold-ups or even being denied entry. Common errors include assuming rules are the same across all majors, bringing “small backpacks” thinking they’ll be allowed, and blocking their bib number with a bag or waist pack. Another frequent misstep is waiting until race day to check the bag policy, missing updates or changes from the previous year. Being proactive about understanding the rules can save you stress on race morning.

2. General Bag Rules Across All World Marathon Majors

While every race has its nuances, these rules apply to all six majors unless explicitly stated otherwise:

Allowed (Usually)

  • Small waist packs / running belts / fanny packs (typically < 1 liter)
  • Armbands and phone holders
  • Minimal hydration belts or vests if worn on the body and transparent/clear when required
  • Hand-held water bottles

Prohibited on the Course

  • Backpacks of any size
  • Drawstring bags (except official race-issued ones for gear check)
  • CamelBaks or large hydration packs worn on the back
  • Sling bags, cross-body bags, tote bags, duffels
  • Anything that covers your bib number

Your bib must be clearly visible at all times — no exceptions.

3. Bag Policy by Race: Major Differences You Must Know

While the general rules above apply to all WMM events, each race has unique nuances in its bag policy. These differences often stem from local security requirements, course logistics, and historical factors. Below is a breakdown of the key bag rules for each major.

3.1 Boston Marathon Bag Policy

The Boston Marathon has the strictest bag policy of all World Marathon Majors, with zero tolerance for non-compliant bags. Here’s what you need to know:
  • No bags allowed during the race: Unlike other majors, Boston prohibits all bags during the race – including small waist packs and hydration belts. The only exceptions are medically necessary items (e.g., insulin pumps, EpiPens) with prior written approval from the Boston Athletic Association (BAA).
  • No gear check available: The BAA does not offer gear check for runners. This means you cannot leave bags at the start or finish line. Runners typically use “drop bags” with friends/family or utilize pre-race transportation services that allow them to store gear until after the race.
  • Historical reasons for strict security: The Boston Marathon’s strict bag policy is largely a response to the 2013 bombing, which involved explosive devices hidden in backpacks. Since then, the BAA has implemented some of the most rigorous security protocols in the running world to prevent future incidents.
If you’re running Boston, plan to carry only the absolute essentials (e.g., gels, keys) in your pockets – and ensure your bib is fully visible.

3.2 New York City Marathon Bag Policy

The NYC Marathon has strict but more flexible rules than Boston, with a focus on official gear check and transparent bags. Key policies include:
  • Backpacks prohibited: All backpacks (including small daypacks) are banned from the race course and start/finish areas.
  • Waist packs: limited / subject to screening: Small waist packs (under 10 liters) are allowed but must go through security screening. Runners should avoid waist packs with multiple compartments or bulky designs, as these may take longer to screen.
  • Official clear bag gear check: The NYC Marathon requires runners to use the official clear plastic bag provided in the race packet for gear check. Non-official bags will not be accepted. The clear bag policy allows security to quickly inspect contents, reducing delays.

3.3 London Marathon Bag Policy

London’s bag policy balances security with runner convenience, with a well-organized gear check system. Key rules:
  • Small waist packs generally permitted: Waist packs under 15 liters are allowed, as long as they don’t block the bib. Hydration belts with small bottles are also permitted.
  • Organized gear check system: London offers gear check at the start line, using official race bags (provided in the runner packet). Runners can drop off bags before the race and pick them up at the finish line. Non-official bags are not accepted.
  • No mid-race bag changes: Runners cannot drop off or pick up bags during the race (e.g., at aid stations). All gear must be checked at the start or carried with you.

3.4 Berlin Marathon Bag Policy

Berlin’s bag policy is focused on size limits and official bag drop, with a emphasis on quick security screening. Key details:
  • Waist packs allowed: Small waist packs and hydration belts are permitted, as long as they meet size requirements (typically under 12 liters).
  • Strict size limits at security checkpoints: Any bag carried during the race must fit through a standard security screening bin. If your bag is too large, it will be confiscated or you may be denied entry.
  • Official bag drop only: Gear check is only available for official Berlin Marathon bags (provided to runners). Non-official bags are not accepted, and runners cannot leave personal items at aid stations.

3.5 Chicago Marathon Bag Policy

Chicago’s bag policy is similar to NYC and London, with restrictions on backpacks and a focus on official gear check. Key rules:
  • Backpacks prohibited: All backpacks are banned from the race course and start/finish areas.
  • Waist packs allowed with restrictions (may vary by year): Small waist packs (under 10 liters) are allowed, but rules may change slightly each year. Always check the official Chicago Marathon website for updates before race day.
  • Official event bag required for gear check: Gear check is only available for the official Chicago Marathon bag included in the runner packet. Runners should label their bags with the provided tag to ensure easy pickup at the finish line.

3.6 Tokyo Marathon Bag Policy

Tokyo’s bag policy is highly structured, with a focus on organization and bib visibility. Key policies:
  • Waist packs and arm bands permitted: Small waist packs (under 10 liters) and arm bands are allowed, as long as they don’t block the bib or timing chip.
  • Highly structured bag drop system: Tokyo uses a color-coded bag drop system, where runners are assigned a specific bag drop area based on their wave. Only official Tokyo Marathon bags are accepted, and runners must attach the provided wave-specific tag to their bag.
  • Bib and timing chip visibility emphasized: Tokyo organizers strictly enforce bib and timing chip visibility. Any bag that covers either will result in a warning or denial of entry. Runners should ensure their waist pack or hydration belt is positioned below the bib.
Race Name
Allowed Bag Types
Maximum Capacity Limit
Special Notes
Boston Marathon
None (except medically necessary items)
All bags prohibited
No gear check available; medically necessary items require prior written approval
New York City Marathon
Small waist packs, arm bands, minimalist hydration belts
≤10L (waist packs only)
Waist packs subject to security screening; multi-compartment or bulky designs are not recommended
London Marathon
Small waist packs, minimalist hydration belts
≤15L (waist packs only)
No mid-race bag changes; gear check only accepts official race bags
Berlin Marathon
Small waist packs, minimalist hydration belts
≤12L (waist packs only)
Bags must fit through standard security screening bins; gear check only accepts official race bags
Chicago Marathon
Small waist packs, arm bands, minimalist hydration belts
≤10L (waist packs only)
Policies may be adjusted annually; always check the official website before race day
Tokyo Marathon
Small waist packs, arm bands, minimalist hydration belts
≤10L (waist packs only)
Strictly prohibit covering bib numbers and timing chips; color-coded bag drop system based on waves

4. What Type of Bag Is Safest to Use at the World Marathon Majors?

If you want one bag that works at all six majors without stress:

  • FlipBelt, SPIbelt, or Naked Running Band (minimal, no bounce, under clothing)
  • Nathan TrailMix or similar low-profile hydration belt (if you need fluids)
  • Clear hydration vests (e.g., Nathan Pinnacle) are increasingly accepted but double-check Boston (still no).

Pro tip: Many elite and sub-3 runners bring zero bags on race day and rely on on-course nutrition.

5. Gear Check and Official Bag Drop Rules Explained

Most World Marathon Majors offer gear check (bag drop) for runners, but these services have strict rules to ensure security and efficiency. Understanding how gear check works will help you avoid mistakes on race day.

Why only official bags are accepted

All WMM events require runners to use the official race bag (provided in the runner packet) for gear check. Non-official bags are not accepted for two key reasons: security and organization. Official bags are pre-labeled with unique identifiers (e.g., wave number, runner ID), making it easy for organizers to track and distribute them. They also have standardized sizes, which allows for efficient storage and transport. Using official bags reduces the risk of lost or stolen gear and speeds up the check-in and check-out process.

Size limits and prohibited items

Even with official bags, there are size limits and prohibited items for gear check. Most official bags are around 20-30 liters, which is enough for a change of clothes, shoes, and toiletries. Prohibited items for gear check include: Valuables (e.g., cash, jewelry, laptops, cameras), Dangerous items (e.g., knives, pepper spray, flammable materials), Perishables (e.g., food, drinks that need refrigeration), Oversized items (e.g., large blankets, pillows). Organizers are not responsible for lost or stolen valuables, so it’s best to leave these items at home or with a friend/family member.

Why valuables should not be checked

Gear check areas at marathons are busy, with thousands of bags being processed. While organizers take precautions to secure bags, theft can happen. Additionally, bags may be mishandled during transport, leading to damage or loss of valuables. For this reason, WMM organizers explicitly advise against checking valuables. If you must bring valuables, carry them with you in a small waist pack or arm band (if allowed) – or leave them with a trusted person at the finish line.

6. Common Bag-Related Mistakes That Can Get You Stopped at Security

  1. Thinking “it’s just a tiny backpack” — security doesn’t care.
  2. Assuming last year’s rules still apply.
  3. Wearing a waist pack over your bib (it will be moved or removed).
  4. Bringing a hydration backpack “because I need the water” — course aid is plentiful.

7. Final Checklist: Bag Rules Before Race Day

Use this quick checklist to ensure you’re compliant with WMM bag rules before race day:
  • ✅ Check the official race website for the latest bag policy (1-2 weeks before race day).
  • ✅ Confirm if waist packs/hydration belts are allowed (especially for Boston).
  • ✅ Ensure your bag (if allowed) is under the maximum size limit (usually 10-15 liters).
  • ✅ Verify that your bib will be fully visible when wearing your bag.
  • ✅ Pack only essentials in your race bag – leave valuables at home.
  • ✅ Attach the official label to your gear check bag (if using).
  • ✅ Practice wearing your race bag during a training run to ensure it’s comfortable and doesn’t block your bib.

8. Final Thoughts: Always Check the Official Race Rules

Bag policies can (and do) change every year based on threat assessments and local laws. The only source of truth is the official race website the month before your marathon.

Bookmark these direct links:

Prepare your bag strategy as seriously as your training — because showing up with the wrong gear can end your World Marathon Majors dream before you even toe the line.

FAQ – World Marathon Majors Bag Policy

Are backpacks allowed at the World Marathon Majors? No. Backpacks are prohibited at all six majors on race day.

Are waist packs allowed at Boston Marathon? No — Boston is the only major that bans all bags, including waist packs, on the course.

Can I use a hydration vest at major marathons? Usually yes except Boston. Clear or low-profile vests (e.g., Salomon, Nathan) are safest. Always check the specific race rules the year you run.

Safe travels, clear bags, and fast finishes! 🏁

Once you understand the rules, the next step is choosing a bag that actually complies. We cover that in a next guide.

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