Prices vary depending on style, size, colors, handles, materials and features.   
https://www.westone.com/store/defendear/defendear-recreational/surfer
 
For custom plugs, you must have a physical silicone or digital ear impression for these to be able to be produced - These are custom fit and 3 D printed molds for your ear.  Highest quality Personal Ear Protection Plugs.  In the Portland area, email for an appointment for your 3D digital scan (service included in the cost)
 
Floatable
Waterproof
Best for swimming and water sports
Can be purchased with or without a filter (price will vary with filter)
Reusable, washable (soap and water)
Soft and comfortable  
Non-toxic hypoallergenic 
Custom to fit your ear!
Comes in a variety of colors and handles.