Borosilicate glass bottle. Strong and lightweight.
Silicone sleeve protects the bottle from any knocks or scratches as well as ensuring no condensation forms on the outside of the bottle. It also provides a non-slip base for further stability.
A unique Black + Blum feature is that the thread is on the inside of the bottle providing a smooth lip for drinking.
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About Black & Blum
Black + Blum is a product design company located in London. With rigorous attention to detail and a focus on sustainability, they design original products that inspire a sense of well-being. As well as brilliant design, they are passionate about doing their part to protect the environment through creating products that are built to last. Their range consists of premium food and drink on-the-go products: lunch boxes, water bottles, thermoses, and accessories.