If you use curved pins, other wise I'd baste it. Start from the bottom, and holding the material in front and behind the foot you are going to pull the material tight/snug as it travels under the presser foot, other wise you will get a little pucker in the top material when you get to the top, ( no matter how well you pin/baste). It's abit tricky at first so warm up on some scrap first. Good luck! And if all else fails int: