If you want something durable go with Timebersled. The are made from perforated aluminum, not some cheap fabric or mesh. I put a pair on my M8 and let me tell you, if i manage to put a hole in them im going to have a lot bigger issues that a broken side vent.
Cool idea! BUT.... One HUGE PROBLEM!....... SNOW STICKS TO ALUMINUM! Snow DOESN'T stick to the fabric most vents are made with.
Good luck! Let us know how it goes! Nice lookin sled!
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