The shipping prices displayed at checkout are the rates pulled from the different carriers and service options based on the shipping address that was input and the item(s) in the order. We are unable to offer cheaper rates than what is shown at checkout.
Our deskmats are 400mm x 900mm and weigh around 2 lbs when packed.
For domestic shipping, First Class shipping rates only go up to 15.9 oz, so these mats must be shipped Priority. Also, rates increase at certain thresholds. There is nothing we can do about that.
For international shipping, it is not uncommon for the price to ship to be more expensive than the cost of the item.