Arcsin Undies - Arccos Undies Mod Pack - Downloadable PDF Sewing Pattern

This is a downloadable PDF Sewing Pattern. This pattern has not yet received its Style and Size Inclusivity Update. All pattern holders will receive the update when it is released! NOTE: This pattern is an Arccos Undies Mod Pack and requires pattern pieces and instructions from the Arccos Undies Pattern.  Finally, you say, there is underwear with a working fly front!! Where have these been all our lives!! Everyone has been waiting for these!!  GARMENT SPECIFICS The Arcsin Undies are a modification of the Arccos Undies: it has the same hipster cut, featuring a very cute overlapped fly front. The crotch is fully lined, and uses a great trick to enclose all the seams. This garment can be entirely constructed with a sewing machine, serger optional. Techniques required include zig zag stitches and working with elastic. SUGGESTED FABRICS Knit fabrics with 50-75% stretch, preferably with a spandex content. Bamboo, Rayon, or blends with Cotton, Lycra, Silk, Spandex, Nylon, Tencel. 100% cotton tends to stretch out quickly. Measure stretch by marking out 4” of fabric, then gently stretch to max. FABRIC YARDAGE All sizes 1/2 yard NOTIONS All sizes 1.5 yd Waistband elastic  All sizes 2.5 yds Leg band elastic  All sizes 8 inches Accent Elastic SIZES This pattern includes sizes XXS-000/00 to 3X-24/26 PLEASE NOTE: The Arccos Undies (required for this pattern) are currently only graded between XS-0 to 2X-20/22. We plan to bring early patterns up to date in 2022.  Sophie’s waist is 25”, her hips are 35.5”, and she is 5’10” tall. She is wearing size XS - 0/2 with no modifications.  Pattern download link will be emailed to you after checkout. It will arrive in a ZIP file format. Simply click to unzip, and print at 100% without scaling. You can download the pattern up to three (3) times, so make sure you download it on your personal computer and keep it filed in a safe place! You may not sell garments made using this pattern.