Shirts bunching up while sewing

[KIDSPORT]

Hello everyone. New here. Have been using my Amaya for about 6 months now and for the most part its great. I am doing some polos that are 100% polyester but the fabric more resembles spandex. I've tried hooping the material while stretching it tight and hooping it like I would with a tshirt. The results are awful either way. It's pulling the fabric and bunching up the design.
Help!
Any advice?

Thanks,
Chris

[thundersports]

try heavier backing.
i use 2 pieces of 3 oz.

[Steve]

Fabric that stetches is the worst stuff to embroider. I don't sell it. PERIOD! Since you taking on the job, my suggestion is DO NOT stretch the material or it will curl up like a potato chip once it is washed. Make sure your design has the proper underlay and smooth out any excess material once you do hoop it. I think 2 pieces of heavyweight 3oz. cutaway will uncomfortable for the person wearing it. One piece of 3oz. or 2 pieces of 2oz. should do it. If it needs to be thick, try one piece heavyweight 3oz. and one piece tearaway.

[KIDSPORT]

I tried doubling up on the backing and using spray adhesive, No luck. I tried taping up my hoop so it's not slick, no luck. Any other suggestions? There's GOT to be a solution here. The Adidas logo is stitched on the opposite side of the garment and it looks pristine! How come they can do it and we can't?

[Judy]

Stretchy stuff is my personal enemy. I loathe it. I iron on a layer of cut away first. This gets the fabric flat and non stretchy. Then I hoop it with a layer of cutaway, 3 ounce. I then pin all of it together once it is hooped. This helps to hold the stretchy to the cutaway backing. I have also been known to run a basting stitch around it all before I get started, which I actually prefer...much faster. Just set it up in your design to do a walking stitch around the inside of the hoop. Be certain to use nothing larger than a #11 ball point needle. Check your bobbin tension. And don't forget to tell Amaya you think she does great work.....!!