1.Capacity:500ml 2.high vacuum insulated structure 3.custom logo&color is ... steel 3042.Double walls stainless steel and high vacuum make it insulated from outside,can keep warm ... be put ice cake.4.The design of lightweight,unbreakable,streamlined is suitable for any rucksack,bag ... products,mainly such as:universal use vacuum heat preservation cup,stainless steel vacuum cup,tour flask,wide mouth flask ...