Gillette Stadium bag policy

Bag allowed · clear bags only

12 × 12 × 6 in≈ 30 × 30 × 15 cm

Or a gallon-size clear freezer bag

Small bag allowed · wristlet or handheld wallet

6.5 × 4.5 in≈ 17 × 11 cm

As published on the official page

Policies can differ for concerts and special events; check your event page before you go.