Not the jacket. You need a lot more impact protection.
I often wear Rigg’s Wear Ranger pants (cordura cargo pants, double-front, $33 at DenimExpress.com), and add a set of knee/shin guards underneath. Carhartt’s are cotton canvas, if memory serves me, which will be better than jeans, but not by a lot.
The Carhart jacket would be fine in the spring and fall when the temp is below 75 degrees F, with armor added under it. When it is warmer, it would make you sweat a lot from the lack of vents.
I think that Jeff ion Kentucky has a good point that the jacket would probably make you sweat a lot. Also, he’s probably right that it will work if you buy armor to go under it. However, I think that it would be best suited for traveling at low speed (<35~)
If you want to go lower cost I would suggest getting some riding jeans and some armor. They weigh less, protect better and cost about the same as carharts.
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