I presume 'Hefty' is a brand name. To me 'hefty' means 'strong', as a normal adjective in the English language.
I've used them, and I think they are.
I would choose ZIPLOC baggies or HEFTY garbage bags
Hefty sandwich bags are made up of polythene.
Hefty is a very reliable trash bag brand. Hefty bags are sold at many different retailers. One might purchase Hefty bags at Walmart, Amazon, Overstock, or Kmart.
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All plastic is recyclable, but not all recycling companies will recycle every kind of plastic.
Biodegradable plastic.
plastic
Hefty products can be purchased from almost anywhere in the world simply by ordering them online at the Hefty website.
"Hefty" means sturdy, heavy, strong.
you ha ha ha
Glad Products Company.
yes cause hefty is short for strong