• 【Stadium Approved】Mildbeer 12"x10"x4.8" Clear Backpack. Ultra-visibility PVC design ensures instant security clearance. Complying with strict venue size limits. Your all-access pass to concerts, sports events & stress-free airport screening. 
• 【Organized Multi-Layer Storage】 Main Compartment: Fits 12" laptops bulkier items (light jackets/souvenirs); Lower Front Pocket: Secures 6.5" devices (max-size smartphones) card slots; Upper Front Pocket: Quick-access zone for earbuds/lip balm/ID cards; Side Mesh Pockets: Holds 3.0" diameter cups (venue-compliant 16oz containers).
• 【Smart Expandable Design】 Magnetic side panels toggle between 3" slim profile & 4.8" expanded mode. Full-flip top access with 180° opening for effortless packing/unpacking. Maintains neat shape whether packed light or fully loaded.
• 【Comfort in Every Detail】 Cold-resistant 0.4mm PVC. Tear-Resistant. Easy to clean. Adjustable shoulder straps feature breathable cotton-cushioned padding for all-day wear.
• 【Hassle-Free Entry Guaranteed】 Designed to meet 12"x12"x6" venue standards. Confirm your venue's policy before purchase.