Reddit mentions of Louis Raphael Men's Total Comfort Nailhead Neat Pattern Flat Front Dress Pant, Brown, 32x32

Thanks! Fortunately I was able to just buy the boots, pants, sweater, gloves, facemask, and goggles. I couldn't find a vest or helmet that was right, so I sewed them myself.

I bought upholstery vinyl because it was a lot cheaper than leather and it looked closest to the comic/video game costume.

There wasn't a pattern that was close to what I needed, so I had to just cut out the pieces myself, assemble it, then cut it down to fit.

For the vest there was a middle piece and two side pieces on the back, two pieces for the front to create the double breast, and the collar. I found some cool buttons at a fabric store and sewed them on and cut corresponding holes for them. On the back, I hand embroidered a Spider-Man logo, picture here. It's filled in with black and I outlined it with red and blue.

The helmet was the hardest part. It still didn't come out quite right. I started with the band going around the bottom from ear to ear, then cut out the strips for the top. I sewed the strap for the goggles to the band of the helmet to make it stay, but in a way that also allowed it to move.

As a bonus, I crocheted a pouch to hold my wallet and keys that resembled webbing. It was my first time crocheting so it didn't look very pretty, but that worked out in my favor because it looked more like webbing.

Here are links to the piece I bought:

Boots

Goggles

Pants

Balaclava

It probably took me about a month to complete it, but I wasn't working on it every day. The most time consuming part was the embroidery. With the vest and helmet took a decent amount of time after cutting the pieces and pinning them together, then recutting them to fit better. But actually sewing it all together didn't take much time. As long as you use a sewing machine.