This Teeny tanka is designed for toddlers and younger children. They hold a volume of 350mls (one large glass) and are ultra light and compact, measuring approximately 125mm from the bottom to the top of the stainless steel area. They weigh 103g or 3.5oz without the lid.

Mini tankas are slightly smaller than the average sports size bottle and are ideal for children. The Sports Cap is easy to open and close and children of any age should be able to use it. They hold a volume of 600mls (two large glasses), are ultra light and fairly compact, measuring approximately 180mm from the bottom to the top of the stainless steel area. They weigh 140g or 4.78oz without the lid.

Sports tankas are the most popular of the ECOtanka range. They hold a volume of 800mls (three regular sized glasses), are ultra light and measure approximately 230mm from the bottom to the top of the stainless steel area. They weigh 173g or 6oz without the lid.

Supa tankas are special extra large drink bottles. They hold a volume of 1.200 litres (four large glasses), are ultra light and measure approximately 230mm from the bottom to the top of the stainless steel area. They weigh 208g or 7.25oz without the lid.