Tree trunk bottle

Bottle that holds approximately 0.7 liters. The design is based on achieving a cost efficient production and easy (hygienic) cleaning. 1.5 mm single wall steel bottle fitted with two Ø2 mm NBR seals. Ø32 mm opening (hole) to allow easy drinking when exercising. Plastic cap seals very well even though cap is pushed on / pulled off. Cap is textured to allow easy grip when for instance running on a treadmill. Requires approximate 10N push/pull force to remove/install cap. Textured injection molded and Lexan paint coated rubber sleeve provides good grip in hand and a realistic bark texture. To be stretched on or it could also be heat shrunk. This sleeve also provides good thermal insulation and could be manufactured in different patterns. Area on bottle for brand/logo placement - this could also be placed on rubber sleeve if more cost efficient. The bottle should fit in a standard cup holder, but the diameter can be decreased of course :-)