| Ultramarine

BOOST Hipster

Ultramarine / XXS

$38.40 USD $48.00 USD

| Ultramarine

Leakproof Undies

BOOST Hipster

$38.40 USD $48.00 USD

Absorbs 4-8 regular tampons
Adjust absorbency with BOOSTER
Machine washable
Includes one BOOSTER

Savings per wear: $4 | based on 8 tampons

Absorbency ESSENTIAL BOOST™ SUPER

Pack Size 1-Pack 3-Pack

ColorUltramarine

If you’re in between sizes, size up in Hipsters.

Hipster Size Guide

Our hipsters are a low rise fit, we recommend basing your size off of your hip measurement. Standing with your feet together, wrap a soft measuring tape around the widest part of your hip parallel to the floor.

If you're between sizes we recommend sizing up from your normal size. If you're between an XL and a 1X note that the 1X will allow for a roomier fit through the waist.

Size	Hip
XXS	30-33"
XS	33-35"
S	35-37"
M	37-39"
L	39-42"
XL	42-44"
1X	42-44"
2X	44-48"
3X	48-52"
4X	52-57"
5X	57-62"

Shipping & Returns

Shipping

US & Canada

Order value	Cost	Delivery
Over $99	$2.99	5–7 business days
Under $99	$9.99	7–10 business days
Any order (VIP)	$21.99	3–5 business days

International

Order value	Cost	Delivery
Over $200	$50	7–14 business days
$90–$199.99	$25	7–14 business days
Under $90	$15	7–14 business days

View full policy →

Returns

We accept returns of unopened, unworn, non-sale underwear within 20 days of delivery for store credit. Due to the intimate nature of our products, we are unable to offer refunds.

At this time, we are unable to accommodate exchanges.

All products purchased on sale are final sale and not eligible for return.

View full policy →

Prebiotic Undies New

Everyday SoftFit with ProBioma™ for the rest of your cycle. Not leakproof.

View Collection →

OEKO-TEX® certified

PFAS-Safe*

B-Corp certified

Details

Fit & Feel

Absorbency

4-8

tampons

Absorbency level

Best for

Easy refresh

Value for money

Light to heavy flows

Overnight

Care instructions

Machine wash cold

No fabric softener or bleach

Dry on low heat

Fit + Coverage

Low to mid rise

True to size

Materials

BODY

48% TENCEL™ lyocell, 48% organic cotton, 4% spandex

LINING

86% OEKO-TEX certified, PFAS-Free*, recycled polyester, 14% organic cotton

LEAKPROOF CORE

64% OEKO-TEX certified, PFAS-Free*, recycled polyester, 15% polyester, 11% organic cotton, 10% TPU

BOOSTER

65% OEKO-TEX certified, PFAS-Free*, recycled polyester, 24% polyester, 11% hemp

Diagrams

Front and back diagram

Gusset diagram

BOOST Adjustable Absorbency

Protection you can customize

Absorbs 4-8 tampons

Not every day requires the same level of protection. That’s why we developed BOOST, our adjustable absorbency system.

BOOST allows you to customize protection using a removable absorbent BOOSTER, adding capacity only when you need it.

What is a BOOSTER

A BOOSTER is a removable insert shaped like a pad without wings that is designed to fit into our BOOST underwear.

How it works

BOOST can be worn with or without a BOOSTER for light or heavy coverage.

Adjust absorbency by sliding the removable BOOSTER into the front and back openings of the gusset.

How it performs

BOOST features our integrated three layer leakproof system to wick fluid away from the body and absorb up to 4 tampons worth of fluid.

Woman sitting on a windowsill holding a mug, wearing a light blue sweatshirt and Aisle period underwear in Espresso.

Why we made it

Adjustable absorbency means better comfort, better performance, and you need fewer products overall.

Made with you in mind

OEKO-TEX® certified

Our fabrics are certified free from harmful substances, gentler on skin, safer for long-term wear, ultimately, reducing irritation.

Stitched, not glued

Stitched seams hold up through 100+ washes. Bonded (glued) construction stretches out and breaks down over time.

PFAS-Safe*

No PFAS or unnecessary chemical treatments in our leakproof layers, materials designed to be safe against your skin.

You may also like