T-Mobile Park bag policy
Bag rules for Seattle Mariners games at T-Mobile Park in Seattle, WA, as posted on the venue's own page. Checked 1 November 2026.
Clear bag requiredClear bag only, up to 12 x 6 x 12 in
Backpacks not allowednot allowed
The rules
- Clear bag size
- 12 x 6 x 12 in [1]
- Small bag or clutch
- 4.5 x 6.5 in clutch or fanny pack [1]
- Backpacks
- not allowed [1]
- Diaper bags
- Single-compartment diaper bags no larger than 16 x 16 x 8 in, with a child present. [1]
- Medical bags
- Exceptions will be made for medically necessary items. [1]
- Bag check
- No storage. The Mariners do not check coats or personal items. [1]
The venue page does not say anything about: other bags.
Some items not allowed
- Ammunition
- Audio recording devices
- Brooms
- Balloons, beach balls and other inflatable items
- Animals (other than service animals)
A sample from the venue's list. See the full list on the venue page.
Concerts and other events at the same venue can have different rules. Check the event page before you go.
Sources
- T-Mobile Park Information Guide, Seattle Mariners, checked 1 November 2026