• COLDCELL FLEX™ INSULATION: A lightweight, closed-cell foam offers the superior temperature-holding power to keep your lunch fresh for the day. • FOOD SAFE: From fresh fruits to subs, store it safely and clean it easily. • YETI® ICE SHEET and FOOD STORAGE COMPATIBLE: Perfectly fits your frozen YETI® ICE SHEET and YETI® Food Storage to maximize cooler space. • DAYTRIP™ SHOULDER STRAP COMPATIBLE: Just hook it on to go hands-free. • INTERNAL PACKATTIC™ POCKET: Pack everything in its place with an internal pocket that secures utensils and condiments against the lid.