The LifeStraw Go Water Bottle has been updated with 2-stage filtration to improve the taste of your water and provide even better protection. Go Bottle incorporates a carbon capsule that reduces bad taste, odor, chlorine and organic chemical matter. The LifeStraw Go Bottle combines these technologies into a convenient, reusable sports bottle. Take the LifeStraw Go when you go hiking, camping, or traveling to areas with poor water quality. Simply scoop water from any pond, stream or river and filter as you drink. When the filter has reached capacity (1,000 liters / 264 gallons) it will stop taking in water. The activated carbon capsule will be effective for up to 100 liters (26 gallons), or the equivalent of 3 months of continuous use. Replacement filters are available for sale separately. Made of BPA-free Tritan, the LifeStraw Go bottle is extremely durable. The food-grade silicone mouthpiece is flexible which prevents it from chipping or cracking, and is removable for easy cleaning. Use the carabiner to attach to your backpack, or store in your preparedness kit to ensure access to safe, clean drinking water in an emergency. Capacity 23 ounces.