New Wave Enviro's Seriously Safe® #304 high quality food grade stainless steel bottles are completely safe and BPA free, leach free, liner free, lightweight, durable, reusable, and recyclable. Available in 4 solid colors. Fits most cup holders and bike cages. Easy to use, (cap can be replaced with one-hand open Flip N' Sip BpA-free cap, sold separately). Keep this lightweight bottle on your desk or take it along with you in the car, to a yoga class, to school, shopping or for a stroll along the beach... wherever you go, it goes! The Carabiner Clip is great for Hiking, Mountain Climbing, or any other outdoor activity of your choice. The mouth is the perfect size for ice cubes, but not too big to cause you to spill down your shirt.