Description:  ENVIRONMENTALLY FRIENDLY MATERIAL: Soft and comfortable, BPA-free, food grade silicone material, healthy and environmentally friendly, not easily deformed, easy to use. CAPACITY AND THERMAL STABILITY:  Maximum capacity of 550ml, can withstand a temperature range of -58°F to 392°F. COMPACT AND STABLE PERFORMANCE: Don't be afraid of water leakage and falling, stable and not dumping, there is a stable and insulated cup ring in the middle of the cup, anti-slip, no need to worry about unsafe burns. FOLDING COMPERSSION RING DESIGN: Folding creative design, light and easy to carry. D-shaped hanging hole design, beautiful, convenient to travel when hiking, can be hung in clothes or backpacks. The cup lid fits snugly for dust and hygiene. EASY TO USE WIDELY:It can be used as an outdoor portable drinking cup, children's outdoor play large-capacity hot and cold water storage cup, travel mountaineering portable compression water cup, business office compression carrying water cup, etc., can be used repeatedly, environmentally friendly, pollution-free, drinkable coffee, Juice, tea, easy to clean. Brand name: STEVVEX Gadgets Model number: ST16GG8152GEOX Size(Folded):10*10*6.3cm;Size(Unfolded):10*10*16.8cm Weight:200g Color:Grass green, orange, blue, Cyan blue, gray Capacity:550ml(19oz) . Material:Environment-friendly BPA-free material Temperature:High temperature resistance Adjsutable sizes: 3 adjustable sizes to meet everyone's needs Climbing buckle: design to hang it on a backpack or bicycle Note:Please sterilize by boiling before use. Use soft material to clean cup in case of damage. Do not hold strong acidic and alkaline liquid in the cup.