Come and see our amazing products. Neoprene offers great insulation at a lightweight. Because of the good insulation and lightweight, it is very suitable for outdoor. You should expect drink cold water in summer and warm water in winter. High quality buckle type design makes drink water more convenient. The neoprene water bottle sleeve fit for 12 oz - 21 oz (360 - 600 ml). It especially fits 16.9 oz water bottle great! Pls confirm with us about the packing info, stock color and exact production time before placing your order.