Use a wool or cotton sock as a sleeve to keep your water container cold longer. Or invest in a insulated sleeve available at most camping supply stores.
Use a wool or cotton sock as a sleeve to keep your water container cold longer. Or invest in a insulated sleeve available at most camping supply stores.
可以用毛料或者棉质的袜子做外套让水容器保冷更久。也可以用在大部分露营装备店都有的绝缘套。