TargetTalk

A long hot summer has resulted in a strong sweat odor in my sons jacket and pants any ideas would be appreciated

Are they all canvas or canvas and leather?

If all canvas, you can wash the clothing but hang outside to dry. Do not put in clothes dryer.

Febreze is also an option...have some fun and get him a floral scent!
ken

Other than as mentioned washing and febreze one way you can help to reduce or eliminate odour is with a Merino wool top and leggings. I use a lightweight Icebreaker long sleeve top in summer as it breathes very well but because it's odourless it seems to stop my jacket cuffs from getting to manky.
As for my glove well that get really rank in a Sydney summer and that just gets washed.

http://shopbushido.com/glove-deodorizer.html

Rank smelling gloves are a problem for fighters too. I work near their shop, and happened upon these products while I was getting equipment for my other interests.

They work surprisingly well! I've got one shoved into both of my gloves (I alternate between a new and old glove). These deodorizers work a lot better than stuffing them with used dryer sheets - my former method.

Get one of the wide "shoulder saver" hangers for the coat. Place an unfolded dryer sheet in the shoulder/armpit area while hanging. Place in a well ventilated area for air circulation.

For the pants use a heavy duty hanger with clips, hang them open.