The weight limits for the flight to/from Lukla are 10kg/ 22 lbs in your duffel bag and 5kg/ 11lbs in your backpack.
Don’t show up on an Everest Base Camp trek with a bag full of brand new gear!!  You need to check each piece of gear you are bringing and make sure it fits, works and makes sense to bring. You will have a weight limit on the trek that you MUST adhere to.  Do not bring unnecessary or uncomfortable items with you on the trek.  They will end up staying in your bag and will have been carried up and down for no reason.  The weight limits for the flight to/from Lukla are 10kg/ 22 lbs in your duffel bag and 5kg/ 11lbs in your backpack.  On the trek, our weight limit is a total of 15kg/ 33 lbs in your duffel bag.