Mid-Rise Hipster | Sienna - Retro Full-Coverage Women's Underwear

Underwear Size Chart

underwear size chart in inches

Need to know how to measure your underwear size? Click Here!

Between sizes? Go for the larger option for a comfier fit, go smaller for a firmer + more snug fit.

ITERATION SIZE	US DRESS SIZE	WAIST (INCHES)	HIPS (INCHES)
XS	0 - 4	24" - 26"	34" - 37"
S	4 - 6	26" - 28"	37" - 39"
M	8 - 10	28" - 31"	39" - 41"
L	12 - 14	31" - 34"	41" - 44"
XL	16 - 18	34" - 37"	44" - 47"
1X	18 - 20	37" - 41"	47" - 51"
2X	20 - 22	41" - 45"	51" - 55"
3X	22 - 24	45" - 49"	55" - 60"

NOTE: Our fabric is really stretchy and two sizes might work for some people. If you prefer a firmer fit, we suggest selecting the smaller size. If you prefer a comfier fit, we suggest selecting the larger size.

If you're selecting a low-rise or mid-rise style, we recommend you base your size mostly on your hip measurement.
If you're selecting the high rise style, pick the size where the measurement range falls closest to both of your measurements.

Don't see your size here? We continue to add sizes based on community feedback. Let us know what size you need by joining the community.

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Mid-Rise Hipster | Sienna

Need to Know Details

MID-RISE | sits below your natural waist, sides can be worn on low or high hips
RETRO LEG LINE | a little lower in front for more coverage
MODERATE SEAT COVERAGE | covers most of your behind with a small hint of cheek
NO UNCOMFORTABLE ELASTICS | won't dig into your waist or bum
TAGLESS CARE + SIZE LABEL | no itchy tags to get in your way
GUSSET LINING | 15% longer and 10% wider than typical brands
COLORS | Pink Sand, Sienna, Mahogany, Onyx

Materials + Composition

BODY + WAISTBAND | 94% TENCEL™ Modal + 6% spandex
GUSSET LINING | 100% cotton
PRODUCTION | made with 💜 in a small + ethical factory in Sri Lanka; designed in USA

Care Instructions

WASH | machine wash cold
LINE DRY | hang dry to save energy
MACHINE DRY | if machine drying, tumble dry on low
STAINS | only non-chlorine bleach as needed

Returns + Exchanges

Fit Matters. We’ve Got You.

Comfort and fit are everything, especially when it comes to bras+ undies. Helping you discover your next era of intimates is our jam, made easy for you with free returns and exchanges.

Returns of unwashed, unworn items with the tags on are accepted for 30 days and will be refunded to the original form of payment. See our Returns Policy for more details.

Still have questions? Not a problem!

For style suggestions, take our Bra Quiz

For bra sizing, check out our custom Measuring and Calculator

Still have questions? Shoot us an email at hi@iterationera.com and we can personally assist to ensure you're fitted perfectly!

DIG-FREE UNDERWEAR

Smooth, elastic-free all day comfort

These dreamy undies are pure bliss for your bum. With a double-layer fabric waistband and smooth elastic-free leg openings, they’re built for all-day comfort—without the digging, pinching, or pesky red marks.

Mid-Rise Hipster | Mahogany women's underwear, mid-rise hipster, full coverage panties iteration

About Our Fabric

94% TENCEL™ Modal + 6% spandex

We dig our fabric for many reasons, here's just a few of our top favorites:

2X softer than cotton, tough enough for all day adventures

Natural material made sustainably from regenerative beech trees

50% more absorbent than cotton with odor resistance

Wireless Bras and Elastic Free Underwear

Cosmetic Neutrals

Beautiful nudes to match your skin tone

Our carefully curated palette celebrates the beauty of neutral nudes, offering a spectrum of makeup-inspired shades that flatter all skin tones.

iteration ethical manufacturing factory workshop underwear sew by samples

four-diverse-models-wearing-complimentary-modal-bras-and-underwear

94% TENCEL™ Modal + 6% spandex

BETTER FABRIC, BETTER FEEL

We love our fabric for a lot of reasons—like being 2X softer than cotton, naturally breathable, and sustainably made from regenerative beech trees. It’s cozy, moisture-wicking, and tough enough for everyday wear (with odor resistance, too).

Learn more about TENCEL™ Modal

community-powered + shaped by you

CO-CREATED BY 1,200+ WOMEN

Every style is co-created with input from over 1,200 women—wear tested, refined, and perfected through real feedback and community-led design. Thoughtfully made, because your voice matters.

Join our Co-Lab Community

Made to fit diverse + ever changing bodies

FITS INCLUSIVE SHAPES + SIZES

Our inclusive range spans XS to 3X with bras offered in both standard and full-busted options from A to G cups. Every style is wear-tested and refined with our community to ensure a supportive, feel-good fit.

About Our Inclusive Size Range

Conscious Creation from Fabric to Factory

SUSTAINABLE + ETHICALLY MADE

We use premium, eco-responsible materials and partner only with manufacturers who uphold fair wages, safe working conditions, and ethical practices—because how it's made matters just as much as how it feels.

About Our Sustainability Efforts

Reviews

5.0

Rated 5.0 out of 5 stars

Based on 22 reviews

Total 5 star reviews: 22 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0

100%would recommend these products

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22 reviews

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HG
Heidi Ganser L.
Verified Buyer
Reviewing
Mid-Rise Hipster | Mahogany
I recommend this product
Age Range 35-44
Rated 5 out of 5 stars
Great panties!
These panties are super soft and stretchy, and I love the V design- they don't roll down!
Was this helpful?
KT
Kendall T.
Verified Buyer
Reviewing
Mid-Rise Hipster | Onyx
I recommend this product
Age Range 25-34
Size Purchased M
Rated 5 out of 5 stars
Very soft and comfortable
I went back and forth on which fit to get. The mid rise is perfect and the material is so lux feeling.
Was this helpful?
JN
Janice N.
Verified Buyer
Reviewing
Mid-Rise Hipster | Mahogany
I recommend this product
Age Range 45-54
Size Purchased L
Rated 5 out of 5 stars
So comfortable!
Love this underwear! It is super soft and comfortable. Have to buy some more!
Was this helpful?
JT
Ja Tawn A.
Verified Reviewer
Reviewing
Mid-Rise Hipster | Sienna
I recommend this product
Age Range 55-64
Size Purchased 2X
Rated 5 out of 5 stars
Mid-Rise Hipster with Ultra Comfortable V-Front Waistband | Sienna
Love the high waist and cute color. Very comfortable and covered everything. Thought I would need a 3x but the 2x fit perfectly.
Was this helpful?
JA
Janel A.
Verified Buyer
Reviewing
Mid-Rise Hipster | Onyx
I recommend this product
Age Range 65+
Size Purchased M
Rated 5 out of 5 stars
Hipster Pantie Love
I expected the Iteration bras would be more than comfortable and they did not disappoint. I had no expectations about the panties because “undies are undies” I thought. Both the high rise and hipster are a major cut above any pair of underwear I’ve ever worn. The fabric is whisper soft and the design is so comfortable I forget I’m wearing underwear. The waistband is smooth and, again, the design is fantastic. They work beautifully under my clothes-no lines.
Was this helpful?
I
iteration
Mar 3, 2025
Thank you so much, Janel! It makes our day knowing you've discovered our new brand and we held up to the test!! Our design team puts so much thought into every design detail, and it's wonderful to hear how much you're loving both styles. Thank you for your incredible feedback and support!! 💜

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