We have an SKU that we purchase and sell individually or in pairs. We want to be able to separate the inventory in pairs and inventory in one piece but still using one single Item record. Currently, we are using the Bins to separate the quantity in stock. Is there a better way to do this?

Kit item?

We are currently using Kits to sell in pairs and use bins to get the inventory from Bin Pair then from Bin Single (if none from Bin Pair). Was hoping there's a better or native way.

Sounds like kit item if they are sold as a pair for a different price than 2 individually. If the "pair" price is same as buying 2 of them, then I would not overcomplicate it and just sell 2 of them. You might be able to get there with UOM but I kinda hate UOM and it wouldn't help with differentiating them from a stock point of view. If you want to stock the same thing in 2 different quantity types, then it's not the same item from an inventory point of view.