Weight Vest for CrossFit and Hyrox: How to Choose Size, Weight and Fit in Malta

You feel it about halfway through the second mile of Murph. The vest that felt like nothing in the car park is now a hot, sweaty carapace bolting itself to your ribs, and every pull-up feels like someone parked a scooter on your shoulders. That is the moment you learn whether you bought the right vest — or just the cheapest one in stock.

A weight vest for CrossFit and Hyrox is one of those bits of kit that looks simple and absolutely is not. Get the size, weight and fit right and it becomes an almost invisible training partner. Get it wrong and it chafes, bounces, restricts your breathing and quietly discourages you from ever loading up again. This guide walks Maltese athletes through choosing one properly, built around how you actually train rather than what the box down the road happens to sell.

First, be honest about what you'll use it for

The single biggest mistake is buying a vest for an imagined version of your training. Before you spend a cent, decide which of these two camps you fall into — most people lean one way, even if they dabble in both.

Use case 1: Murph and hero WODs (fixed, heavy, worn for reps)

CrossFit's benchmark hero workout Murph — a 1.6 km run, 100 pull-ups, 200 press-ups, 300 air squats and another 1.6 km run — is traditionally done "as prescribed" with a vest of 20 lb (about 9 kg) for men and 14 lb (about 6.3 kg) for women. Plenty of other hero WODs and CrossFit workouts prescribe the same loads. If this is your world, you want a vest that:

• Sits high and tight so it doesn't slam into your chest during burpees and press-ups
• Distributes weight evenly front and back so your spine stays neutral under squats
• Won't ride up over your head when you're upside down at the bottom of a press-up
• Handles being dumped on the floor, dragged and sweated through week after week

For most people in this camp, a well-fitted 9 kg (20 lb) vest is the sensible default. It's the standard load, so your training carries directly over to the workout, and it's rarely so heavy that your technique falls apart.

Use case 2: Weighted runs, rucks and Hyrox conditioning

Here's an important clarification, because there's a lot of loose talk online: Hyrox itself does not use a weight vest. A standard Hyrox race is eight 1 km runs paired with eight functional stations — a sled push, sled pull, burpee broad jumps, rowing, farmers carry, sandbag lunges, wall balls and a ski erg. None of them require a vest. So why would a Hyrox athlete want one?

Because a vest is a superb training tool for the running and grinding demands of the sport. Weighted easy runs, weighted step-ups, weighted lunges (to rehearse the sandbag lunge station under load), rucking on the coast road, and weighted carries all build the leg and postural endurance Hyrox punishes. For this use you want a vest that:

• Is adjustable, so you can start light and progress in small jumps
• Has minimal bounce for running — snug torso fit beats a loose "one size" shell
• Breathes reasonably well and dries quickly in our humidity
• Won't restrict your arm swing or ribcage on longer efforts

A quick, non-medical caveat: adding load to running increases the demand on your whole body. Build up gradually, keep the weight modest at first, and treat the vest as one variable among many rather than a shortcut. If anything hurts, take it off — that's coaching common sense, not medical advice.

Plate vests vs fixed-weight vests: the core decision

Almost every vest on the market falls into one of two designs, and this choice matters more than the brand on the label.

Fixed-weight vests

These come at a set weight — commonly 9 kg (20 lb) or 6.3 kg (14 lb) — with the load sewn or moulded into slim pockets around the torso. Their strengths:

• Low profile and close-fitting. The weight is spread thin across a large area, so it hugs the body and moves with you. Ideal for high-rep gymnastics, burpees and press-ups.
• Simple and durable. Nothing to load, unload or rattle. You put it on and go.
• Best for Murph. If your main goal is the classic 20/14 lb standard, a fixed vest at that weight is hard to beat for comfort.

The obvious downside: you're stuck at one weight. If you outgrow 9 kg or want to run with 5 kg, you need another vest.

Plate-loaded (adjustable) vests

These use a plate carrier design — a shell with front and back pockets that take steel or moulded weight plates, so you can dial the total load up or down. Their strengths:

• One vest, many weights. Start at 5 kg for runs, load to 10 kg for strength work, strip back for a metcon. Great value over time.
• Progressive overload built in. You can add small increments as you get stronger — a genuine training advantage.
• Shared kit. In a home gym or a family, several people can use the same shell at different loads.

The trade-offs: plates can shift or clunk if the pockets aren't snug, the carrier sits a little bulkier than a slim fixed vest, and cheaper plates can be uneven. For a Malta home-gym owner who trains a bit of everything, though, a plate carrier is usually the most versatile single purchase.

Sizing and fit: where most vests are won or lost

A vest that's the right weight but the wrong fit is worse than useless. Fit determines whether the load helps you or fights you. Work through these in order.

1. Torso length before chest size

The most common fit error is choosing a vest by chest measurement alone. Torso length — the distance from your shoulders to the top of your hips — is what stops a vest riding up or digging into your hip crease. A vest should sit above the belt line, not bounce on your waistband. If you're short-torsoed, look for compact carriers; if you're long through the trunk, avoid stubby "one size" shells.

2. Snug, not strangling

You want the vest tight enough that it doesn't bounce when you jump, but not so tight it restricts a full breath. The classic test: put it on at working weight, take the deepest breath you can, then do 10 fast air squats and 10 press-ups. If you can breathe fully at the top of the inhale and the vest stays put through the movements, the tension is right.

3. Adjustment points

Look for adjustment at both the shoulders and the sides. Side straps (often Velcro or buckle) let you tune the fit to your body and to whatever you're wearing underneath — a rash guard in summer, a long-sleeve in the cooler months. Cheap vests with only one adjustment point rarely fit anyone well.

4. Shoulder padding and edges

Under a 9 kg load, thin or hard shoulder straps become genuinely uncomfortable within minutes. Padded, contoured shoulders and soft-bound edges around the arm holes prevent the chafing that ends long workouts early. Run your fingers around every edge before you buy — if it feels rough dry, it'll feel worse wet.

5. Try it with your actual movements

If you can, test a vest doing the things you'll do in it. Overhead reach for a pull-up, the bottom of a press-up, a squat and a short jog. A vest that's perfect standing still can be a nightmare inverted.

Malta-specific considerations

Two things matter more here than they might in a cooler, drier climate.

Heat and humidity. A vest traps heat against your core. In a Maltese summer — training in an un-airconditioned box or outdoors on the Sliema front in July — that adds up fast. Prioritise breathable panels, mesh backing and quick-drying materials, and be sensible about when and how long you wear load. Hydrate well and don't be a hero in a heatwave.

Storage and salt. If you train near the sea or leave kit in a hot car, salt and sweat will attack cheap hardware. Rinse and air-dry your vest after sweaty sessions, and favour rust-resistant buckles and stainless or coated plates. A vest that lives in a gym bag in 35°C will not last if the fittings corrode.

Budget tiers: what to expect at each price point

Prices vary, but the value bands are consistent. Here's a realistic guide for the Maltese market so you know what you're paying for.

Entry level

• What you get: A basic fixed vest, usually 9 kg, or a simple plate carrier with a couple of plates.
• Good for: A first Murph, occasional weighted work, testing whether you'll actually use a vest.
• Watch for: Thin shoulders, single adjustment point, scratchy edges and hardware that corrodes. Fine to start, but you may upgrade within a year.

Mid range

• What you get: A properly fitted fixed vest with padded shoulders and side adjustment, or a solid plate carrier with even, moulded plates and small increments.
• Good for: The regular CrossFitter or Hyrox trainee who uses a vest weekly. This is the sweet spot for most people.
• Watch for: Little — just confirm the fit suits your torso and your main use case.

Premium

• What you get: Race-grade construction, excellent breathability, low-profile plates, refined fit and hardware built to survive years of abuse.
• Good for: Athletes who train under load several times a week, coaches, or anyone who wants one vest to last a decade.
• Watch for: Paying premium prices for features you won't use. A casual once-a-year Murph athlete doesn't need the top tier.

Quick picks by athlete type

• The Murph-once-or-twice-a-year CrossFitter: A well-fitted fixed 9 kg (20 lb) or 6.3 kg (14 lb) vest. Simple, comfortable, standard-compliant.
• The do-a-bit-of-everything home-gym owner: A mid-range plate carrier you can load from ~5 kg up to ~10 kg or more. Maximum versatility for one purchase.
• The Hyrox-focused runner: A snug, breathable adjustable vest you can keep light for weighted runs and load up for lunges and step-ups.
• The multi-session-a-week grinder or coach: Premium construction with the best breathability and durability you can justify.

Programming the vest into your training (sensibly)

Once you've chosen well, resist the urge to live in it. A vest is a tool for specific adaptations, not a badge of honour to wear through every session.

• Rehearse the standard. If Murph is a goal, do practice sets of pull-ups, press-ups and squats in your 9/6.3 kg vest so race day holds no surprises.
• Keep running load modest. Add a small percentage of your bodyweight for weighted runs and build slowly over weeks, not days.
• Use it for accessory work. Weighted step-ups, walking lunges, planks and carries all translate well to both CrossFit and Hyrox demands.
• Prioritise clean movement. The moment your positions break down, the vest is doing harm not good. Strip weight before you strip technique.

The bottom line

Choosing a weight vest for CrossFit and Hyrox comes down to three honest questions: what will you mainly do in it, do you need one weight or many, and does it actually fit your torso? Nail those and the rest is detail. Buy a slim fixed vest at the standard load if Murph is your target; buy an adjustable plate carrier if you want one piece of kit to cover runs, strength and metcons; and in every case, put fit and breathability first — especially in the Maltese heat.

Get it right and the vest disappears into your training, quietly making everything a little harder in the ways that matter. That's exactly what good equipment should do.