Bushwhacker Oasis - Insulated Hydration Hip Pack - Water Bottle Included - Black - Great for Walking Jogging Hiking Biking Holder Waste Hip Pack Belt Constructed with durable 600 denier polyester fabric. Insulated water bottle holder. Twenty-two ounce water bottle included. 1 1/2 inch webbing belt adjusts up to a 42 inch waist (*the oasis has been redesigned and will fit up to a 42" waist*). Color: Black.