If you have the right size and are wearing the carrier correctly, it’s not a problem if your dog prefers to ride in the K9 Sport Sack with their paws inside of the carrier.
If your dog is too small for the bag and isn’t able to put their paws through the arm holes, you need to either exchange the bag out for the right size or get a booster block to give your dog a lift inside the carrier.
You may also need to pull the collar enclosure a bit tighter and make sure the carabiner clip is clipped to your dog’s collar.