Amazon has BlenderBottle Classic Loop Top Shaker Bottle on sale for $2.86.
- 28-ounce capacity (Note: measurements only go to 20 ounces)
- Patented mixing system uses 316 surgical-grade stainless steel BlenderBall found only in BlenderBottle brand shaker cups
- Updated features include patented loop top, ergonomic flip cap, and tapered spout
- Perfect for protein shakes, smoothies, pancake batter, and more
- Dishwasher safe, BPA- and phthalate-free; available in three sizes: 20-ounce, 28-ounce and 32-ounce