Super cool top. Pump the handle to build up the pressure, adjust the nozzle for the desired spray, and press the back of the top to release a refreshing spray/ mist. Comes with 32 oz Nalgene base. CLEAN OFF, COOL OFF & DRINK using the mist, stream and shower patterns. It has the functionality of a garden hose, kitchen faucet, shower and water bottle in one. HUNDREDS OF USES – Clean, cool and drink while at the beach, sporting events, exercising, pets, camping, travel, boating, RVing, hunting, fishing, athletics & more. PORTABLE BIDET? YES! WATER FLOSSER? YES! Includes variable flow trigger, 3 attachment points, works upside down, and has pulse and stealth modes for more control over your water. BPA FREE and designed so you can disassemble for cleaning and maintenance. Spare parts available. SIMPLE TO USE - Simply pump to build pressure, twist the nozzle to select between mist, shower or stream. Then press the trigger to spray