"Breathable cotton" refers to a type of cotton fabric that allows air to pass through easily, making it comfortable to wear and helping to prevent sweat and odors from getting trapped. Full definition
Relax in the large king size beds all dressed with breathable cotton sheets and mosquito nets for a comfortable night's sleep. (healthandfitnesstravel.com)
Made out of 100 % breathable cotton fabric with a hypoallergenic fibre fill, the pillow's size is about 20 inches by 54 inches. (parenthood.guide)
The shell is made of breathable cotton - nylon with a water - resistant coating. (territoryahead.com)