Ottoline Sewing Pattern · Merchant & MillsFrom Merchant & Mills, the Ottoline pattern is a boxy workwear jacket with cuff and side seam splits and inside pocket. Although a lovely design detail, the vents are a little tricky, so they have included instructions to simplify Ottoline by excluding the side seams and sleeve vents if preferred. Skill Level: Experienced Sizes: UK 6 18 They have found that a heavy duty thread, rather than a topstitch thread, gives a more authentic look to the