Founding spots open now · US
Next Size Club sends everyday basics in your new size each time you size down, takes back the ones that are too big, and adds a monthly comfort kit. One subscription. Nothing to shop for, nothing to think about.
Find my next size →2-minute quiz · no payment today · first boxes ship in waves from December
The part nobody warns you about
The jeans that fit in March are sliding down by May. You feel great — and look like you're wearing someone else's clothes.
Buying a full set of basics for every size on the way down is expensive, and most of it is too big within weeks.
Shopping in a size you'll leave next month isn't fun. You want your goal wardrobe later — not a dozen in-between trips now.
How it works
Your current top and bottom size, your fit, and roughly how fast things are changing. Two minutes.
Leggings, joggers, tees, a belt that adjusts — chosen for your size today, delivered to your door.
Log your new size in the app. We ship the next size and send a prepaid label for the ones you've outgrown.
In your membership
Founding members get the exact contents and prices first.
The member shop
No store trips, no comparing twenty listings. We pick one good version of each thing and ship it with your basics.
Insulated case that keeps an injection pen cool on the go.
Ratchet belts with no holes — they tighten as you shrink.
Small portions are easier to get right when you can see them.
Smaller meal-prep boxes sized for how you eat now.
Hydration that's easy to keep track of all day.
Supplements and reminders, sorted by day.
A progressive set to help keep your strength as you lose.
Measurements tell you more than the scale — and when to size down.
Founding waitlist
Questions
No. Next Size Club is a clothing and comfort subscription. We don't sell, prescribe or recommend any medication, and nothing here is medical advice. Talk to your doctor about your treatment.
It's built for anyone whose size is changing quickly — medication, surgery, or a lot of hard work. If you're sizing down every month or two, it's for you.
They're professionally cleaned, checked, and passed on to a member who's that size right now. Bras and underwear are never re-used — those are always new.
We'll announce the plans and prices before launch. Founding members see them first and keep their founding price for as long as they stay.
We open in waves starting this December — founding members first, in the order of the waitlist.