good product, correct sizing depends on the slipper or shoe
Purchased actual size needed and one size smaller because of posted reviews about sizing maybe being an issue. Ended up using the matching size for my 2.5yr old Overland slippers still holding up well and the smaller size for my Uggs. Both fit and work great in two different size 11 applications. Correct insole sizing depends on the shoe you're putting them into...cover your bases, Overland has fee free returns...Overland has great quality products and is a very service orientated company. I highly recommend them.