The Embrava Best Sports Water Bottle, Nalgene Tritan Wide Mouth BPA-Free Water Bottle, Simple Modern Ascent Water Bottle are some of the best options you can find online. Other items including Under Armour Sideline 64 Ounce Water Jug and BuildLife 1G Motivational Water Bottle are all fantastic choices! When it comes to the gym, you want something unbreakable, will fit in your gym bag, is easy to hold and carry. You can check for all these while browsing online and decide on the best one.