Personal Portable Spot Cooler

Step 3 Making the side Insulations

Here i will give yo utips on making the sides insulated and even below, i will not recommend you guys to use permanent markers to trace out the sapes. but instead use some thin opaque tape for markings as they are more straight and more well guided when cutting.
for shaping the sides, use a sand paper(abrasive) to make smooth edges.OMG CFCs!!!! im feeling sorry for that.