These insulation bags come from frozen food delivery boxes that have since moved to biodegradable insulation, so I can't return them. I've used these in combo with a cool bag on a camping trip and they work well.
There are 3 of the larger bags (82cm x 38cm) and 2 thinner bags (91cm x 21cm). The material inside is waste from the manufacture of denim jeans so could also be used as a stuffing material for some craft projects.
Insulation bags (Northern Moor M23)
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