If you've ordered a weighted vest and found it wouldn't close, or closed only by squashing your chest, you're not alone. It's one of the most common complaints women make about weighted vests, and it says more about how the vests are made than about your body.
This guide covers why so many vests don't fit, how to measure before you buy, and what to look for in straps, closures and shoulders so the vest fits well. If nothing fits well yet, a backpack is a comfortable way to start, and we cover that too.
Why so many vests don't fit
We read more than a thousand owner reviews of popular weighted vests while planning our Gear Lab tests. Two fit complaints came up again and again from women:
- It won't close. Women in larger sizes described vests that wouldn't buckle, side straps that ran out of length and "one size fits most" vests that didn't. Many of those reviews were low-rated.
- It presses on the chest. Straps that cut across the breasts, buckles that sit right on the bust and a block of weight pressing on the chest were the most common fit complaint overall, from women of every size.
Many vests are cut for a flatter, straighter torso, with the weight in front and short straps at the sides. On a body with a fuller bust, belly or hips, that design runs out of room. A better fit usually comes from a different design, not a bigger version of the same one.
Measure before you buy
Size labels vary so much between makers that an XL from one can fit like a medium from another. Measurements are more reliable.
Use a soft tape measure over the top you'll walk in, and write these down:
- Bust: around the fullest part of your chest.
- Ribcage: around your body just under your bust, where a lower front buckle or strap might sit.
- Waist: around your middle where the side straps will sit. This is often the measurement that decides whether a vest closes.
- Torso length: from the top of your shoulder, down the front, to where you'd like the vest to end. A vest that's too long can dig in when you bend or sit down.
Then compare them with the maker's size chart. Look for the full adjustable range (the smallest and largest it will fit), not just the size name. Aim for your measurements to land in the middle of the range, so you have room to tighten it as it settles and to loosen it over a winter layer.
Side straps and closures that work over a full bust
The closures matter more than almost anything else. Look for:
- Long, adjustable side straps. Wide hook-and-loop straps or long webbing straps give you more range than a short elastic band. Check how much they adjust, and whether they keep their hold when pulled tight.
- A front that closes above or beside your bust. Buckles that sit high on the chest, or close at the sides, avoid pressing on your breasts. A buckle that lands right on your bust will dig in with every step.
- An open front. Some vests have no panel across the chest at all: they go over your shoulders and fasten around your ribcage or waist. These often suit a full bust well.
- Extenders. Some makers sell strap extenders for their vests. If a vest you like comes close, ask before you give up on it.
- Easy returns. Buy where you can return or exchange it without a fuss, so you're not stuck with a vest that only nearly fits.
Where the weight sits, and what's on your shoulders
A good fit is more than closing the vest. Where the weight sits changes how it feels after a walk.
- Weight on your back and sides. Look for vests that spread the weight around your torso, with little or none across your chest. A block of weight across the front can press on your bust and pull your shoulders forward.
- Wide, padded shoulders. Narrow straps dig in, and narrow straps carrying weight dig in more. Wide, soft shoulder straps spread the pressure.
- Nothing under your collarbones. If the top edge of the front panel sits right on your collarbones, it will rub. Check photos of the vest being worn, not just lying flat.
- Room under your arms. Armholes that are cut high and tight can rub. Look for a wide opening, and wear a fitted top with sleeves (our guide to how to wear a weighted vest has more on what to wear underneath).
- Removable weights in small steps. Your size isn't a reason to carry more. A vest with small, removable weights lets you start light and add a little at a time.
Try it on at home first
When your vest arrives, try it on before you take the tags off:
- Put it on over your walking top and sports bra, with every weight in.
- Fasten the front, then snug the side straps. Check how much strap you have left: you want some spare, not the very last notch.
- Walk around the house for a few minutes, including up and down stairs if you have them.
- Check it: does the front sit above your bust? Do the shoulders press or rub? Does anything bounce?
If it presses, pinches or only just closes, send it back. A vest that's uncomfortable at home won't get better on a long walk. Once you have one that fits, our cleaning guide helps it stay comfortable.
A backpack is a good alternative
If you haven't found a vest that fits well yet, you don't need to wait. A backpack doesn't need to wrap around your chest, its shoulder straps adjust over a wide range, and a hip belt can take some of the load off your shoulders.
- Look for a pack with a hip belt and a chest strap that adjust to fit you. Our guide to rucking backpacks has a checklist.
- Wear it snug and high, with the weight packed close to your back. Our DIY weighted vest guide shows how to load one with things you already own.
- Not sure which suits you? Our weighted vest vs rucksack guide compares the two.
Many women start with a backpack and decide on a vest later. Some never switch. Both work.
Before your first walk
- Check in first if you need to. Talk to your doctor or physical therapist before you add weight if you have osteoporosis or osteopenia; bone, joint, heart or pelvic floor concerns; or if you're pregnant or postpartum.
- Start lighter than you think. Use our free weight calculator for a starting range, and pick the lighter end.
- Know when to stop. Stop or lighten your load if you feel sharp pain, pain that changes how you walk, pelvic heaviness, dizziness or chest discomfort.
We're fit-testing vests on women's bodies, including larger and full-bust sizes, and our reviews will appear in the Gear Lab.
Your next step
A vest that fits is out there, and you don't need one to start. Measure yourself, shop by the adjustable range rather than the label, and send back anything that presses or only just closes.
In the meantime, our free 4-week plan shows you how to start with a backpack or a vest and build up one small step at a time.