16L Double-layer Insulated Lunch Box, Expandable Leakproof Cooler Bags with Adjustable Strap, Unisex

Features: EXPANDABLE DOUBLE-DECK DESIGN - Innovative 16L expandable capacity with dual compartments separates dry and wet foods perfectly - converts from medium to large size with simple zip mechanism for maximum storage flexibility and food freshness PREMIUM TRIPLE-LAYER INSULATION - Advanced construction featuring 300D oxford cloth exterior, 5mm pearl foam insulation, and EVA interior liner maintains optimal food temperature for hours - perfect for office lunches, picnics, and travel COMFORTABLE CARRYING OPTIONS - Equipped with detachable adjustable shoulder strap and sturdy handle for versatile transport - includes convenient exterior mesh pockets for essentials like napkins and utensils plus smooth-gliding zippers for easy access SUPERIOR LEAKPROOF PROTECTION - Enhanced EVA lining provides exceptional waterproof seal preventing leaks and spills - thickened bottom reinforcement ensures durability while protecting surfaces and maintaining cleanliness VERSATILE ORGANIZATION SYSTEM -