I have had a problem with my hoses bursting this summer - 70 psi.  I have a couple of black hoses that hold the pressure just fine but the other heavy duty garden hoses that I have purchased this summer lased t hardly a week - even though I have tried several different brands.  After doing research on hoses I purchased a high pressure contractors hose but had difficulty handling it - too heavy.  I purchased the Gilmour 8-ply and it is exactly what I had been looking for.  It holds the pressure without bursting, doesn't kink too badly, and slides across the grass easily.  I wish that I had found it sooner but none of my local hardware/big box stores carry Gilmour hoses.  As long as I can find them on Amazon I don't ordering them online.