1 - Material:Bottle material: 304 ss inside, 201ss +bamboo outside
Cap material: bamboo+silicone+ss
2 - Capacity: 320ml=11oz; 420ml=14oz; 500ml=17oz
3 - Customization:1-Many available popular Colors could be chosen, and custom color and logo highly welcomed as well;2-Many available logo and others can achieve the collocation you like.