Well, before giving up on the mitt and trading it in for a new model, try fixing it instead. For about $5, you can get a lacing needle and some rawhide lace and maybe salvage that mitt for another season or two.
Lace. You will need this if you need to replace the lacing.
Step 1: Survey the Damage
For this particular repair, the lacing had been pulled out of all four fingers and had been retied along the top to hold the fingers together. But the lacing itself was intact so I reused the old lacing and saved the new lacing for another repair.
Step 2: Plan the Repair
If the lacing pattern is complicated, make a diagram. Number the holes according to your planned lacing order. Dark lines indicate paths where the lacing is outside the mitt. You can use a broken line to indicate where the lacing goes through the mitt if it doesn't clutter up the diagram too much.
The "back" part of the drawing is drawn as if you are able to look through the mitt. This keeps the front and back spatially oriented so that order is easier to follow when you use the diagram to relace the glove.
Starting at hole 1 on the front of the index finger, the lacing goes through the index finger of the glove and comes out on the back at hole 2. The lacing re-enters the glove at hole 3 and comes out the front of the glove on the middle finger at hole 4. The lacing diagonally crosses over and re-enters the glove at hole 5. And so on...
Step 3: Insert the Needle
The needle goes in the opposite way of the lace. If you want the lace to go from left to right, put the needle in from the right so that it comes out of the mitt on the left.
If you are following the plan you made in the previous step, insert the needle into the hole 2 so that it comes out of hole 1. You will be walking the path backwards with the needle so that as you go to the next hole, the needle goes into the higher numbered hole and out the lower numbered hole.