Don't know what size your boy is but GATSBY Soft Mesh Scrim Sheet with Belly Strap Fly Sheets Blankets and Sheets HorseLoverZ.com
Not a bad price, I don't know what the quality is like but, for that amount I'd be happy if I got one summer out of it. With Ab, I'm happy if he still has his sheet on. Not trampled, ripped off, torn and destroyed. He only gets the cheap ones now. Really cheap ones.
I should buy some and put on the product tester..... I'll let you know in 2 weeks if they live or die.