Chase Field Bag Policy 2026 | Clear Bag Rules & Size Limits

Heading to Chase Field for a Diamondbacks game or a concert? Chase Field runs a strict clear bag policy — unlike Disney’s size-based system, bag material and transparency matter here just as much as dimensions. Here’s exactly what’s allowed under the official Chase Field bag policy.

Quick Answer: Chase Field Bag Policy at a Glance

Chase Field enforces a clear bag policy. Fans may bring one clear plastic, vinyl, or PVC bag no larger than 12″ x 6″ x 12″, or a one-gallon clear resealable freezer bag, plus a small non-clear clutch or wallet no larger than 6.5″ x 4.5″. Backpacks and any opaque bag larger than a small clutch are not permitted.

Official Policy Verification & Source Check

Official policy source: Arizona Diamondbacks’ official “Clear Bag Policy” page (mlb.com/dbacks/ballpark/information)

Source type: Official team/venue website

Last checked: September 2026

Confidence level: High

Important notes: The team’s own security page currently names the storage-locker partner as “Mobile Locker Company,” while several older press releases and third-party guides still refer to the same service as “BinBox,” located at the NW plaza (also described elsewhere as the Gila River Hotels & Casinos Plaza). This looks like a vendor name that’s changed or been rebranded over time rather than two different services — we go with the current official terminology (“Mobile Locker Company”) here, but note the naming inconsistency since a guest searching for “BinBox at Chase Field” may still find older references.

How We Check This Policy: We prioritize the Diamondbacks’ own official bag policy and security pages over third-party recap articles, and flag discrepancies — like the locker vendor naming above — rather than picking whichever term is more common online.

What Makes Chase Field’s Bag Policy Different

Chase Field’s policy is a close match to the NFL’s clear-bag standard, which has been in place leaguewide since 2013 — the Diamondbacks’ own FAQ points to this directly, along with noting that several Arizona venues (State Farm Stadium, ASU, University of Arizona, Northern Arizona University, and Ak-Chin Pavilion) run similar clear-bag systems locally. That makes Chase Field a “clear-bag-mandatory” venue rather than a size-only venue like Disney or a true no-bag venue like Capital One Arena — the material of the bag matters as much as the dimensions.

One detail that’s easy to miss: Chase Field allows a small clutch or wallet inside the approved clear bag, up to 6.5″ x 4.5″ — but that same clutch can also be carried on its own, separate from a clear bag entirely. Fans sometimes assume the clutch allowance only applies as a sub-item of the clear tote, when it’s actually valid as a standalone option too, useful for fans who don’t want to carry a full clear bag at all.

Allowed Bags and Size Limits Under Chase Field’s Bag Policy

Clear Bags and Freezer Bags

A clear tote up to 12″ x 6″ x 12″, or a standard one-gallon resealable freezer bag, is the safest option for most fans. Both are subject to a bag search at the gate regardless of size compliance.

Small Clutches and Wallets

A clutch or wallet up to 6.5″ x 4.5″ is allowed on its own or nested inside a compliant clear bag — either way, it’s still subject to inspection.

Diaper and Medical Bags

Diaper bags up to 11″ x 11″ x 15″ are allowed after inspection — a notably larger allowance than the general clear-bag limit. For medically necessary items that don’t fit any approved bag category, guests can use the ADA screening lanes at Gate A or Gate E; fans with ongoing medical or accessibility needs are encouraged to contact the Disability Services Manager in advance.

Food and Beverage Rules

Chase Field allows sealed, non-carbonated water bottles, empty plastic bottles, sealed juice boxes, formula, baby food, and small food items — as long as they’re carried in an approved clear bag. Metal and glass containers, along with thermos-style containers, are not permitted regardless of bag compliance.

Prohibited Items Under Chase Field’s Bag Policy

• Backpacks: not permitted in any form, clear or opaque
• Oversized purses and wallets: anything larger than the 6.5″ x 4.5″ clutch limit
• Luggage and travel bags: suitcases and duffel-style bags of any kind
• Computer bags, camera bags, and briefcases
• Fanny packs and cinch bags
• Non-approved seat cushions: anything with pockets, zippers, or concealable areas
• Metal or glass food/beverage containers, and thermoses

Packing Strategy for Faster Entry

• Default to the clear tote or freezer bag: A 12″ x 6″ x 12″ clear tote or a 1-gallon Ziploc-style bag is the most predictable option at the gate.
• Keep the clutch under 6.5″ x 4.5″: Measure it precisely — this is a tight limit, similar in spirit to other clutch-only venues.
• Plan for diaper bags in advance: They’re allowed up to 11″ x 11″ x 15″, noticeably larger than the standard clear-bag limit, so there’s no need to downsize baby gear unnecessarily.
• Use the ADA lanes for medical exceptions: Gate A or Gate E specifically, rather than a general entrance.
• Have a backup plan for non-compliant bags: Either return it to your vehicle, transfer belongings into a complimentary clear freezer bag available at the perimeter, or rent a Mobile Locker Company locker via the app.

Category-Specific Packing Tips

Families with young kids: Diaper bags get a meaningfully larger allowance (11″ x 11″ x 15″) than the standard clear-bag limit — pack accordingly rather than trying to fit everything into a 12″ x 6″ x 12″ tote.

Fans arriving by rideshare or transit: Since there’s no on-site vehicle to return a bag to, the Mobile Locker Company lockers are the practical fallback — rent through the app rather than waiting for a staffed bag-check window, since the team does not check or store items at the gates.

Guests with medical needs: Head straight to Gate A or Gate E for ADA screening rather than a standard gate, and consider contacting the Disability Services Manager ahead of the game if your needs go beyond a single medically necessary item.

Before You Go Checklist

• [ ] Bag is clear plastic, vinyl, or PVC, and confirmed under 12″ x 6″ x 12″
• [ ] Clutch/wallet (if used) measured and confirmed under 6.5″ x 4.5″
• [ ] Diaper bag (if used) confirmed under 11″ x 11″ x 15″
• [ ] No metal, glass, or thermos-style food/beverage containers packed
• [ ] Backup plan set for non-compliant bags (vehicle return, transfer bag, or locker rental)
• [ ] Medical exception guests know to use Gate A or Gate E

Chase Field Bag Policy FAQs

Does Chase Field allow backpacks?
No. Backpacks are not permitted in any form, clear or opaque.

Can I bring a diaper bag into Chase Field?
Yes, diaper bags up to 11″ x 11″ x 15″ are allowed after inspection — larger than the standard clear-bag limit.

Is there a locker option if my bag doesn’t comply?
Yes. Mobile Locker Company lockers are available on-site for a fee, booked through their app, primarily intended for fans arriving via transit or rideshare without a vehicle to return a bag to.

Can I bring my own water bottle?
Sealed, non-carbonated water is allowed, along with empty plastic bottles you can refill inside. Metal and glass containers are not permitted.

What happens if my bag doesn’t meet the policy?
You’ll need to return it to your vehicle, transfer your belongings into a complimentary clear freezer bag available at the perimeter, or rent a storage locker — security will not hold prohibited bags at the gate.

Related Bag Policies

Planning other stadium or theme park visits? Check our other guides:

• Disney Bag Policy Guide
• Target Field Bag Policy Guide
• Ford Field Bag Policy Guide
• Oakland Arena Bag Policy Guide

Conclusion

Chase Field’s clear bag policy mirrors the NFL’s leaguewide standard, prioritizing bag transparency alongside size. A compliant clear tote or freezer bag, paired with a small clutch if needed, covers most fans’ needs, while diaper bags and ADA medical exceptions get separate, more generous allowances. Since bag vendor details and policies can shift season to season, always confirm current rules on the Diamondbacks’ official Clear Bag Policy page before your visit.