I would think it would. The Pro size L is way too big for Swaro 10X42 EL. The original version of the Kuiu size L was perfect for the 10X42. Don’t understand why they enlarged it. Sticks out from the chest more, also. Not a good feature for a bow hunter.I just bought the Kuiu pro harness for 12x50’s and really like it. Kuiu claims the pro harness in XL will work for 15’s.