Click any image to zoom.
Acacia Underwear pattern
Acacia is low rise, bikini cut underwear - basic, normal and super comfortable, the kind you can wear every single day and fill up your dresser with. I designed it because I couldn't find an underwear pattern with the fit I wanted: a low rise (but not super low) and a comfortable leg cut with ample coverage, so your life can be a wedgie free zone. The gusset has fully enclosed seams, there are three ways to attach your elastic, and the pattern pieces are full size so they're easy to squeeze onto your fabric scraps. Quick to sew, and perfect for beginners.
This pattern is a newsletter freebie
This is one of our free patterns — a little thank-you to our newsletter community. Subscribe and we'll send you what you need to grab it free. Already a subscriber? You're all set — keep an eye on your inbox.
- Join our newsletter with the box on the right (free, unsubscribe any time).
- We'll email you a code to enter at checkout to get it free.
- Add the pattern to your cart and enter your code.
- It's delivered just like any pattern — download it from your account and inbox.
Get it free
Free patterns, new releases and step-by-step sewalongs, straight to your inbox.
Your subscriber freebie code arrives by email.
Views
How it fits
What's included
Every pattern comes loaded with everything you need to succeed. Here's exactly what you'll receive in your instant PDF download.
Fabric & notions
Everything you need to gather - so you can shop with confidence in one trip.
Exact fabric amounts by size & width are in the Sizing & yardage chart below.
Sizing & yardage
Everything in one place - measure your body, pick your size, see exactly how much fabric to buy, and check the finished garment measurements for the fit you want.
Note: Fabric requirements include 5% fabric shrinkage allowance. You may need to adjust requirements if your fabric shrinks more than 5%.
A free photo sewalong for every step
Follow the sewalong - clear, step-by-step photos from cutting to final press. Free forever, no account needed, and yours to work through at your own pace.
Open the sewalongIn real life
Made by our community
We love seeing what you create! Tag your makes @megannielsenpatterns and #MNhovea when sharing on social media or Sewciable.
Reviews
Drafted for real bodies & real life
Thoughtful size range
Standard 0–20, Curve 14–34, plus a true separately-drafted Curve block.
Professionally drafted
Industry-standard drafting, uncompromising on quality and fit.
Tested, then tested again
Fit-tested across bodies and perfected before it ever reaches you.
Never sew alone
Free sewalongs, tutorials and real human help when you get stuck.