Size & Weight Guide

Two questions come up before every first HEFT vest: which weight to start with, and how to set the fit. This guide answers both. One thing to keep in mind as you read: each HEFT vest is a single fixed weight. The straps and buckle adjust to your body, while the weight you choose stays the same. You progress by choosing a heavier vest when you are ready, not by changing the load on the one you own.

Choosing your weight

Most people get this question wrong in the same direction: they start too heavy. One rule keeps you out of trouble. Start at about 10 per cent of your body weight, then let your training experience decide where in the range you land. When in doubt, size down.

The rule: start at about 10 per cent of your body weight. Ten per cent is the sensible starting point for most people. The useful working range runs from 5 to 15 per cent, matching the product page. Sit at the lower end, around 5 per cent, if you are new to weighted movement, returning after a break, or older. The upper end, toward 15 per cent, is only for people who are already training regularly and want to push. Comfort across your whole walk matters more than hitting an exact number on the first day.

Which vest to start with

Find your body weight, then read across.

New to weighted movement, returning after a break, or older: use the left column, at around 10 per cent of your body weight.
Already walk regularly and carry load comfortably: use the right column, at around 15 per cent.

Each vest is named by tier so you land on a specific one.

Your body weight	New, returning, or older	Active and comfortable on your feet
Under 130 lb / 60 kg	10 lb / 4.5 kgBeginner. A cautious first vest at any size	16 lb / 7.5 kgPro. For lighter walkers already comfortable with load
130 to 165 lb / 60 to 75 kg	16 lb / 7.5 kgPro. Around 10 per cent of body weight	20 lb / 9 kgAdvanced. Around 15 per cent of body weight
165 to 200 lb / 75 to 90 kg	20 lb / 9 kgAdvanced. Around 10 per cent of body weight	20 lb / 9 kgAdvanced to start. Your step up is Elite 30 lb / 13.5 kg
200 to 245 lb / 90 to 110 kg	20 lb / 9 kgAdvanced. A firm everyday load	30 lb / 13.5 kgElite. For well conditioned heavier walkers who already carry load comfortably
Advanced progression, any body weight	30 lb / 13.5 kgElite. For well conditioned users, or those already adapted to a lighter vest	The step-up option once a 20 lb / 9 kg vest feels easy

If you are new to weighted movement, older, pregnant, or recovering from injury or surgery, start lighter than the table suggests, whatever you weigh, and build up. The right first weight is the one you can wear comfortably for your whole walk.

Tier names describe training experience, not body size. Beginner, Intermediate, Pro, Advanced and Elite refer to how much loaded walking and training you have done, not how much you weigh. A heavier person who is new to a vest still starts at Beginner or Intermediate, and a lighter person who already trains regularly may be ready for a higher tier than body weight alone would suggest. Do not let body weight push you up the ladder on its own.

The five tiers

Each HEFT vest is a single fixed weight. Pick the tier that matches your experience and your 10 per cent target now, and move up by choosing a heavier vest when you are ready.

Tier	Weight	Who it is for
Beginner	10lb / 4.5kg	New to weighted movement, returning after a break, or easing in gently
Intermediate	12lb / 5.5kg	Comfortable with a light load and wanting a bit more
Pro	16lb / 7.5kg	Walking regularly and adapted to a lighter vest over some weeks
Advanced	20lb / 9kg	Conditioned and training consistently, stepping up deliberately
Elite	30lb / 13.5kg	Well conditioned, after months at lighter tiers

Elite (30lb / 13.5kg) is a first vest only for well conditioned heavier walkers, around 200 to 245 lb / 90 to 110 kg, who already carry load comfortably. For everyone else it is a step-up weight after months at lighter tiers, not a starting point.

How you progress

Because each vest is a single fixed weight, you add load by moving to the next tier, not by adjusting the vest you own. Most people spend three to six months at a tier. When your current vest starts to feel light across several walks and leaves no lingering soreness, that is the signal to step up: Beginner or Intermediate, then Pro, then Advanced, then Elite.

Match it to your goal

Your reason for wearing a vest nudges the starting point. For a daily walk, begin light and let the routine build, as covered on the weighted vest for walking page. Women choosing a first vest can find frame-specific notes on the weighted vest for women page. Older adults should lean to the lightest weight and shorter routes, as set out on the weighted vest for seniors page. If bone health is your focus, start conservative and progress slowly, as explained on the weighted vest for bone density page.

A note on your health. Research suggests that weight-bearing and resistance exercise supports bone and muscle health, and health authorities note the value of adding load to movement over time (see the National Institute on Aging and NIH NIAMS). A vest is not a medical treatment. If you have osteoporosis, low bone density, a heart or joint condition, balance problems, or any other medical concern, check with your doctor before adding weight to your walks, and let their advice set your starting weight.

Sizing & fit

The HEFT vest fits a wide range of bodies from a single size, so this part is less about picking a number off a chart and more about setting the vest up correctly on your frame. The shell is one size, and the fit adjusts to you through the straps and buckle. Read this once before your first walk and it will make sense from there.

How the one-size fit works

Goes on over your head, the same way you would pull on a tabard.
Dual Velcro waist straps wrap around your midsection and cinch the vest snug to your waist.
A front buckle clips over the top to lock everything in place.
Open sides keep your arms free, stop the vest pinching, and help one size suit very different bodies.
2 cm of shoulder padding spreads the load over a broad area instead of pressing it into a narrow line.
Fits men and women, narrow, broad, or somewhere in between, because it hangs from the shoulders and pulls in at the waist.

Fit table

Use this as a general guide. The straps cover the gaps between these bands, so a measurement near a boundary is not a problem.

Frame	Chest	Waist	How to set it
Smaller	80 to 92 cm	62 to 74 cm	Cinch straps well in, then snug the buckle
Medium	92 to 104 cm	74 to 90 cm	Straps mid-range, buckle centered
Larger	104 to 118 cm	90 to 106 cm	Let straps out, buckle to the outer set

These bands are a starting point, not a hard rule. Because the vest hangs from the shoulders and pulls in at the waist, most people inside and a little beyond these ranges get a secure fit.

How to measure before you order

Chest: measure around the fullest part of your chest, keeping the tape level.
Waist: measure around your natural waist, roughly level with your belly button, since this is where the straps cinch.
Torso length: measure from the top of your shoulder down to your waistline, so you know how far the panel will reach.

Write the numbers down and check them against the fit table. If you sit near the edge of a range, the straps and buckle give you room to adjust either way.