Eco-Friendly design: made from Borosilicate GLASS for extra strength and more durability. The soft SILICONE SLEEVE provides extra protection whether on-the-go, at home or in the gym! Easy to read TIME MARKINGS to help with your daily fluid intake and keep you on track. Use for COLD & HOT drinks with Leak-Proof Screw Lid and carry strap. Hypo-allergenic & allergen-free with NO CHEMICAL AFTER-TASTES as with ordinary plastic bottles just the pure sweet taste of water. Completely reusable & BPA Free: Helps protect the ENVIRONMENT by avoiding plastic bottles. Comes in 5 colours: black, pink, blue, aqua green & purple . Size: 1 Litre or 550ml