Is There a Way to Repair a Hole in Cycling Shorts?

[RoadRaven]

We have a few holey shorts and jerseys due to crashes.
I can repair the jerseys ok using a zig-zag stitch... but have had no success at all with lycra.
Maybe I need to get an overlocker...?

Our ripped shorts continue to be used... the latest pair is my son's - his first wearing of new shorts, new jersey and almost new gloves and he crashed so well we had to get him a new bike frame! (Carbon doesn't withstand impact well at all!)

So he still wears his shorts on training rides...but I ask him to wear sunscreen under the shorts on his thigh/hip where the road shredded his shorts (and skin).