Contact solution. 10% of sales goes to animal and environmental causes. So there.
Here's what their site says:
"Multi-Purpose Contact Lens Solution for Soft (Hydrophilic) Contact Lenses Finally, a Multi-Purpose Solution for soft (hydrophilic) contact lenses that is cruelty-free, thimerosal-free, chlorhexidine-free, FDA approved. New No Rub formula. Packaged in 12 oz. (355ml) recyclable spill-proof plastic bottles. Product is sterilized by filtration without the use of radiation.
Clear Conscience Multi-Purpose Solution is a sterile solution for daily cleaning, rinsing, disinfecting and storing soft (hydrophilic) contact lenses."