A brand new shape created to give you a perfect, snug fit. Natural Fit Leather Thimbles are the first ever finger-shaped leather thimble with 3-dimensional stitching. There are no seams or stitches where the needle hits the thimble, allowing the needle to be pushed from the most convenient spot. The unique shape creates a smooth curve from the edge of the fingertip to the middle of the finger, giving you a cozy, natural fit. Two layers of leather increase safety. Inner diameter for the Large thimble is .688".