Chase Field Bag Policy 2026 | Clear Bag Rules & Storage
Heading to a Diamondbacks game at Chase Field in Phoenix? The official chase field bag policy follows the standard MLB clear bag guidelines, but with a few details worth knowing ahead of time — including a specific diaper bag size allowance and on-site locker storage for anyone who shows up with the wrong bag. Here’s the full breakdown for 2026.
Quick Answer: Chase Field Bag Policy at a Glance
Chase Field requires bags to be clear plastic, vinyl, or PVC and no larger than 12″ × 6″ × 12″, or a one-gallon clear plastic freezer bag under the chase field clear bag policy. A small non-clear clutch up to 4.5″ × 6.5″ is also allowed, and diaper bags up to 11″ × 11″ × 15″ are permitted separately with an infant.
| Question / Feature | Policy Rule |
|---|---|
| Clear bag required? | Yes — clear bags required with small clutch exception |
| Max clear bag size | 12″ × 6″ × 12″ (clear tote or plastic freezer bag) |
| Clutch/small purse allowed? | Yes — non-clear clutch allowed up to 4.5″ × 6.5″ |
| Backpacks allowed? | No — all backpacks prohibited, including clear backpacks |
| Medical/ADA bags | Exceptions processed at ADA screening lanes at Gate A or Gate E |
| Diaper/family bags | Allowed up to 11″ × 11″ × 15″, subject to inspection |
| Storage lockers on-site? | Yes — app-based storage via Mobile Locker Company (first-come, first-served) |
| Best safe choice | 12″ × 6″ × 12″ clear stadium tote or 1-gallon resealable Ziploc bag |
| Last verified | September 2026 (Official Arizona Diamondbacks Policy) |
Official Policy Verification & Source Check
Official policy source: Arizona Diamondbacks / Chase Field Clear Bag Policy (mlb.com/dbacks)
Source type: Official MLB team & venue website
Last checked: September 2026
Confidence level: High
Important notes: Medical exceptions are processed specifically at designated ADA screening lanes located at Gate A or E, not at standard turnstiles.
How We Check This Policy: We pull these details directly from the Diamondbacks’ official clear bag policy page, including its detailed FAQ section, and confirm them against recent gameday reports. We revisit this page periodically so the sizes and storage options stay accurate.
Official Chase Field Bag Policy Overview
The official chase field bag policy permits one bag per fan that is clear plastic, vinyl, or PVC and no larger than 12″ × 6″ × 12″, or a one-gallon clear plastic freezer bag (Ziploc or similar). Fans may also carry a small clutch purse no larger than 4.5″ × 6.5″, with or without a handle or strap, in addition to their clear bag — though any clutch carried inside the clear tote must also fit within those same dimensions under the chase field clear bag policy.
All bags are subject to search, and the Diamondbacks reserve the right to inspect any item brought into the ballpark.
What Makes the Chase Field Policy Different?
Chase Field’s policy closely mirrors the standard MLB and NFL clear bag format, but a few specifics stand out. The diaper bag allowance is unusually precise — 11″ × 11″ × 15″ — rather than an undefined guideline, giving families a clear target size to pack around.
Seat cushions also get their own detailed rule: one-piece foam cushions without pockets, zippers, or concealable areas are fine up to 18″ wide, while anything with hidden compartments is not approved regardless of size.
The other standout feature is the partnership with Mobile Locker Company for on-site chase field bag storage, which lets fans arriving with non-approved bags rent secure lockers through a smartphone app rather than relying on a physical counter.
Allowed Bags and Size Limits Under Chase Field Bag Policy
To understand what bags allowed at chase field look like on gameday, review this comparison table before leaving home:
| Bag Type | Entry Status | Max Dimensions | Conditions & Requirements |
|---|---|---|---|
| Clear Stadium Tote | Allowed | 12″ × 6″ × 12″ | Clear plastic, vinyl, or PVC; no obscured interior pockets |
| 1-Gallon Freezer Bag | Allowed | 1-Gallon Capacity | Clear, resealable Ziploc-style freezer bag |
| Small Clutch / Wristlet | Allowed | 4.5″ × 6.5″ | Non-clear allowed; with or without strap; can be carried inside clear tote |
| Diaper & Infant Bag | Allowed | 11″ × 11″ × 15″ | Permitted when accompanied by infant; subject to inspection |
| One-Piece Seat Cushion | Allowed | Max 18″ Wide | One-piece foam only; no zippers, pockets, or hidden compartments |
| Medical & ADA Equipment | Conditional | As required | Must enter via designated ADA lanes at Gate A or Gate E |
| Backpacks (Clear or Opaque) | Prohibited | Any size | All backpacks strictly prohibited, even clear backpacks |
| Oversized Purses & Totes | Prohibited | Exceeding 4.5″ × 6.5″ | Non-clear bags larger than clutch size prohibited |
| Fanny Packs & Cinch Bags | Prohibited | Any size | Drawstring, cinch, and fanny packs not permitted |
| Coolers & Hard Luggage | Prohibited | Any size | Hard and soft-sided coolers, briefcases, and luggage banned |
Clear Totes and Bags
Clear plastic, vinyl, or PVC bags up to 12″ × 6″ × 12″ are approved under the chase field clear bag policy, but only if there are no obscured interior pockets — a tote with hidden compartments will not pass even if it’s otherwise clear.
One-Gallon Plastic Freezer Bags
A standard resealable clear plastic freezer bag (such as a Ziploc) is accepted as an immediate, compliant alternative to a dedicated clear stadium tote.
Small Clutch Bags and Wallets
A non-clear clutch or wristlet up to 4.5″ × 6.5″ (about the size of a hand) is allowed with or without a strap, and can be carried on its own or inside your clear tote.
Seat Cushions
One-piece foam cushions without pockets, zippers, or concealable areas are permitted up to 18″ wide. Cushions with storage compartments or zippers will be denied entry.
Diaper Bags
Diaper bags are permitted if smaller than 11″ × 11″ × 15″, and are subject to inspection before entry. Families traveling with infants do not need a clear diaper bag as long as it stays within these limits.
Medically Necessary Items
Guests with items that won’t fit the approved bag sizes can proceed to ADA screening lanes at Gate A or E, where exceptions to the prohibited items list may be granted, subject to search and the discretion of Chase Field management.
Prohibited Bags and Items Under Chase Field Rules
The following items and bag styles are strictly banned from Chase Field gates:
- Backpacks: All backpacks, including clear backpacks and drawstring bags
- Oversized Purses: Non-clear bags and wallets exceeding small clutch size (4.5″ × 6.5″)
- Work & Tech Bags: Computer bags, laptop cases, camera bags, and briefcases
- Recreational Bags: Fanny packs, sling packs, and cinch bags
- Luggage: Rolling suitcases and duffle bags of any kind
- Cushions with Pockets: Seat cushions featuring pockets, zippers, or concealable compartments
- Glass & Metal Containers: Metal or glass beverage containers and thermos-style bottles
- Coolers: Hard-sided or soft-sided coolers of any dimension
How Security Screening Works at Chase Field
All bags are subject to physical search at Chase Field’s entrance gates under the chase field bag policy. If you’re bringing medically necessary items that don’t fit approved bag categories, head specifically to one of the ADA screening lanes at Gate A or E — items there are still subject to search and any exception is at the discretion of Chase Field management. Guests with medical or other special needs are encouraged to call the Disability Services Manager at 602-462-6163 in advance of the game.
If you show up with an unapproved bag, you will be asked to return it to your vehicle. Complimentary disposable clear plastic freezer bags are available at several locations around the stadium perimeter so you can transfer your belongings — but the empty non-approved bag itself still isn’t allowed inside and must go back to your car or into lockers.
Bag Storage with Mobile Locker Company
For fans arriving via mass transit, taxi, or rideshare who don’t have a vehicle to return an unapproved bag to, Chase Field partners with Mobile Locker Company for secure, fee-based chase field bag storage. Lockers are accessed and paid for entirely through the Mobile Locker Company smartphone app (available for Android and iOS), so there’s no waiting in line — the locker opens on demand from your phone. Lockers are available on a first-come, first-served basis, and all stored items are subject to inspection. Chase Field itself does not check or store items at the gates and is not responsible for anything left behind, lost, stolen, or damaged.
Packing Strategy for Faster Entry
- Measure your clear tote: Confirm dimensions are 12″ × 6″ × 12″ or smaller, and ensure it has no hidden interior pockets.
- Check diaper bag dimensions: If your diaper bag is under 11″ × 11″ × 15″, you don’t need to worry about standard clear bag rules for it.
- Download the Mobile Locker app: Bring a payment method and have your phone ready if you might need on-site chase field bag storage.
- Leave prohibited drinkware home: Skip metal, glass, or thermos-style food and drink containers — these are banned regardless of bag compliance.
- Head to Gate A or E for medical: If you carry medical items requiring an exception, plan to enter through Gate A or E specifically.
- Pick up a stadium tote early: Consider buying an official clear bag at the Chase Field Team Shop if you don’t already own one.
Security Check Anxiety Tips
A clear bag policy generally speeds up the actual gate experience, since staff can see your bag’s contents at a glance. Keep your tote easy to hold up, have your mobile ticket ready in the MLB Ballpark app, and if you’re using the ADA screening lane for medical items, allow a little extra time in case that process takes longer than the standard lanes.
Day-of Entry Tips From BagPolicyInfo
- The diaper bag exception has real numbers: 11″ × 11″ × 15″ is specific and worth measuring against directly before heading out.
- Clutches can go inside your clear tote: Just make sure the clutch itself is still within 4.5″ × 6.5″.
- No car? Mobile Lockers are available: Mobile Locker Company offers app-based storage outside the ballpark if you arrived by transit or rideshare.
- Seat cushions must be plain foam: No pockets, zippers, or hidden compartments, even if under the 18″ limit.
- Free clear bags at the gates: If you show up with the wrong bag, complimentary disposable plastic bags are available at perimeter stations so you can transfer your items.
Category-Specific Packing Tips
For families with young kids: Pack your diaper bag within 11″ × 11″ × 15″ and expect it to be inspected before you’re admitted.
For Diamondbacks regulars: A clear tote within 12″ × 6″ × 12″ gives the most room for a game’s worth of essentials; buy one at the Team Shop if needed.
For guests without a vehicle: If you arrived by Valley Metro light rail, bus, or rideshare, Mobile Locker Company’s app-based storage is your backup plan for any non-compliant bags.
For guests with medical needs: Call the Disability Services Manager at 602-462-6163 ahead of the game, and plan to enter through Gate A or E for ADA screening.
Before You Go Checklist
- Approved Clear Bag: Clear tote is 12″ × 6″ × 12″ or smaller with no hidden pockets
- Clutch Dimensions: Clutch or wallet is 4.5″ × 6.5″ or smaller, if carrying one
- Diaper Bag Measured: Diaper bag is under 11″ × 11″ × 15″, if applicable
- Prohibited Gear Excluded: No backpacks, camera bags, briefcases, fanny packs, or luggage
- Seat Cushion Checked: Seat cushion (if any) is one-piece foam with no pockets or zippers, under 18″
- ADA Gates Located: Confirmed Gate A or E for any medical exception needs
- Locker App Downloaded: Mobile Locker Company app downloaded as backup if arriving without a car
Chase Field Bag Policy FAQs
Does Chase Field require a clear bag?
Yes. Approved bags under the chase field bag policy must be clear plastic, vinyl, or PVC up to 12″ × 6″ × 12″, or a one-gallon clear freezer bag, with a small non-clear clutch (4.5″ × 6.5″) as the exception.
Are backpacks allowed at Chase Field?
No, all backpacks are strictly prohibited at Chase Field, including clear backpacks and drawstring bags.
What size diaper bag is allowed?
Diaper bags smaller than 11″ × 11″ × 15″ are permitted when accompanied by an infant and are subject to security inspection.
Can I bring medical items that don’t fit an approved bag?
Yes, proceed to an ADA screening lane at Gate A or Gate E, where exceptions may be granted, subject to search and management discretion.
What if I show up with an unapproved bag?
You will be asked to return it to your vehicle. Free disposable clear bags are available around the stadium perimeter to transfer your belongings, or you can rent a locker.
Is there bag storage if I don’t have a car?
Yes, Mobile Locker Company offers app-based, fee-based chase field bag storage for guests arriving by transit, taxi, or rideshare.
Are seat cushions allowed?
One-piece foam seat cushions without pockets, zippers, or concealable areas are permitted up to 18″ wide.
Can I bring my own food and drinks?
Non-flavored, non-carbonated water in sealed plastic bottles, sealed juice boxes, formula, baby food, and small food items are permitted. Metal, glass, or thermos-style containers are prohibited.
Related Bag Policies
Planning visits to other major ballparks, stadiums, or sporting venues? Review our detailed bag policy guides:
- Coors Field Bag Policy Guide
- Dodger Stadium Bag Policy Guide
- Petco Park Bag Policy Guide
- Oracle Park Bag Policy Guide
- Globe Life Field Bag Policy Guide
Conclusion
Chase Field’s clear bag policy follows the standard MLB format — a clear tote up to 12″ × 6″ × 12″, a one-gallon freezer bag, or a small non-clear clutch up to 4.5″ × 6.5″ — with specific exceptions for diaper bags and seat cushions under the chase field bag policy. If you show up with the wrong bag, complimentary clear bags are available around the perimeter, and Mobile Locker Company offers app-based storage for anyone without a car to return it to. Since policies can be updated, always check the official Arizona Diamondbacks Clear Bag Policy page (mlb.com/dbacks) before your visit.
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