Amazon.com: SUPKIT Small Coffee Thermos, Stainless Steel Thermos Cup, BPA Free, Insulated Water Bottle for Hot Drink and Cold Drink, Perfect for Biking, Camping, Office, Car or Outdoor Travel (12 oz, Silver):
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Futshut - Water Bottles - Thermos Flask - Hot and Cold in Small Size Sports Stainless Steel Vacuum Flask/Bottle - 350 ml
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Source Daydays Small capacity Portable Water Bottle for baby and kids PP Plastic Body Thermos vacuum flask with Glass Refill on m.alibaba.com
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Cute Thermal Bottles Vacuum Steel | Mini Stainless Steel Thermos Flasks - 280ml Mini - Aliexpress