The YOMP Training Club
Built
in 16
16 weeks of structured rucking and strength work. Personalised to your physiology. Built to last.
Why we built it
Most ruck training
is guesswork.
People buy good gear, lace up, and head out the door. Some get fitter. Most plateau. Some get hurt. The gear was never the problem.
Rucking demands more than most people give it. It's not a walk. Done right, it's a serious physical stimulus - and like any serious training, it only works when it's structured, progressive, and matched to the person doing it.
We built Built in 16 because no structured rucking programme existed that was long enough to matter, honest enough to be hard, and intelligent enough to adapt to the individual. Sixteen weeks is long enough to build genuine capacity. Short enough to have a finish line. The programme is the architecture - your physiology is the variable.
Training without structure means training without appropriate load. Most people are either under-training or over-training. Neither produces results. Both produce frustration, and the second one produces injuries.
Load-carriage fitness isn't just cardiovascular. Your posterior chain, your hips, your upper back - they carry the ruck before your lungs even feel it. Strength and conditioning isn't extra. It's the foundation.
A beginner and an experienced athlete should not be doing the same session on Week 1. Built in 16 takes your bodyweight, experience, heart rate, and equipment access and generates a programme that is yours - not a template.
Fitness built without a target drifts. The YOMP Standard Operational Classification - 12km, 20% bodyweight, 2 hours - exists at the end of Week 16. You spend 16 weeks earning the right to attempt it.
How it's built
The principles behind
the programme
Every session has a reason. Every load has a calculation behind it. This is what separates a structured programme from a list of workouts.
Load and distance increase week by week in a controlled pattern. Your body adapts when the stimulus increases slightly ahead of what it has already handled. Too fast creates injury. Too slow creates nothing.
Every ruck session prescribes a heart rate zone. Not because the data is interesting - because effort zone determines what the session is actually building. Zone 2 builds aerobic base. Zone 3 builds threshold. Mixing them up wastes weeks.
Weeks 4, 8, and 12 are benchmark and review weeks. Volume steps back. You complete a measured ruck at controlled load and compare it to your previous result. Progress is measured, not assumed.
Two S&C sessions per week target the movement patterns that matter under load: squat and hinge for the lower body, push and pull for the upper, carries for full system integration. Gym or home - both tracks are genuinely progressive.
On day one you complete a short intake - bodyweight, experience, resting heart rate, equipment access. From that point, every load, every distance, every effort zone is calculated specifically for you. Two athletes on Built in 16 will have different programmes.
Phase 4 of the programme exceeds the graduation load. You don't arrive at Week 16 attempting the YOMP Standard cold. You arrive having already trained at or above it. Graduation day should feel hard. It should not feel like a surprise.
Programme structure
Sixteen weeks.
Four phases.
Each phase has a purpose. Load, effort zones, and S&C volume are designed as a system - not as individual sessions.
Build the connective tissue, gait mechanics, and aerobic base that every subsequent phase depends on. Load is controlled. Effort stays in Zone 2. This isn't easy - this is the base you will push from for the next twelve weeks. Week 4 is a benchmark and review.
Load increases. Zone 3 intervals are introduced on secondary ruck sessions. S&C volume builds. This is where most athletes notice their body adapting to carrying weight over distance. Week 8 is a benchmark - compare your result directly to Week 4 under the same conditions.
The hardest phase. Volume peaks. Load is elevated. Distances extend toward graduation distance. The Open Session becomes increasingly important - this is where your body tells you what it needs. Week 12 is your final benchmark before the taper.
Training load exceeds graduation standard. Week 15 tapers. Week 16 ends with one thing: the YOMP Standard Operational Classification. 12km. 20% of your bodyweight. 2 hours. You have been building toward this since Week 1. It should be hard. You should finish it.
The end result
Week 16.
The YOMP Standard.
Built in 16 doesn't end with a confirmation email. It ends with an attempt. The YOMP Standard Operational Classification is the graduation event. You earn it.
The YOMP Standard is the British classification system for load-carriage fitness. Five levels, bodyweight-scaled, self-regulated, integrity-based.
Built in 16 targets the Operational level - the level that proves genuine load-carriage capability. Not the first rung. Not the top. The one that means something.
Complete your attempt, submit your classification, and you join the register. Your gear carried you here. Your training got you across the line.
Submit Your ClassificationOperational
That's not a side effect of the programme. That's the programme working.
How it works
Five sessions.
Every week.
Each week contains four prescribed sessions and one Open Session. The structure is fixed. The prescription adapts to you.
The main distance session. Load and effort zone prescribed to your phase and experience level.
Push, pull, and unilateral work. The movements that keep your back and shoulders carrying load without breaking down.
Squat, hinge, and loaded carry. The posterior chain work that rucking demands and most athletes skip.
Intervals and effort work. Zone 3 introduced in Phase 2 to build threshold and pace awareness.
Yours to use. Active recovery, weak zone work, or extra volume. The programme tells you what your body needs based on the phase.
Common questions
What you
need to know
No. At the intake form you choose your track - Gym or Home. The Home Track uses dumbbells, kettlebells, sandbags, bodyweight, and the ruck itself as a loading tool. It is not a lesser version. Progressive bodyweight and implement work produces genuine strength adaptation over 16 weeks.
Built in 16 accommodates three experience levels - Beginner, Intermediate, and Experienced. The programme personalises load and distance to your starting point. Beginners start at 5km baseline ruck distance. More experienced athletes start at 8km. Both tracks graduate at the same standard.
A ruck and a load. Plates or a vest. Everything else depends on your track. A YOMP bag and a weight plate is sufficient to start the programme today.
On day one you complete a short intake - bodyweight, age, sex, resting heart rate, experience level, and equipment access. Every ruck load is calculated as a percentage of your bodyweight. Every heart rate zone is calculated from your actual numbers. Two athletes on the programme at the same time will have different prescriptions for every session.
Full access to your personalised 16-week programme. Week-by-week unlock as you progress. Saved progress so you return to exactly where you left off. Pace bands, nutrition guidance, warmup protocols, and coaching notes on every session. The programme runs for approximately four months - roughly £60 total. Cancel any time through your account.
Recommended but not required. Every ruck session includes pace bands in minutes-per-kilometre alongside the heart rate zones. If you don't have a monitor, you can train accurately by pace alone.
The YOMP Training Club
Your 16 weeks
starts now.
Sixteen weeks of structured rucking and strength work. Personalised to your physiology. Ending with a classification attempt that proves what you've built.
Join The Club and Start£14.95 / month · Cancel anytime · Your progress is saved
Designed in Britain.
Landed in the USA
One bag for the ruck, the commute and the two week trip. 1000D Cordura, hip belt included, backed for life, delivered to your door with US duties and import tax already paid.
Read the LBC review →
A rucking pack that refuses to be only a rucking pack
The Y-CO 3 was designed first for load carriage, and turned out to handle everything else without compromise. For our US launch we are leading with the bag itself: carry it daily, travel with it, and ruck with it when you are ready.
Everyday Carry
Dual access, top load plus a full front zip down panel. Side access padded laptop compartment up to 16 inches, smart internal organisation, and hi-vis orange lining so you actually find your gear in low light.
In stock, ships nowTwo Weeks, One Bag
The exact test LBC put it through. Sole bag, two weeks, travel days to dinners out. YKK Aquaguard zips, a water resistant 1000D shell, and a removable hip belt for the long haul.
In stock, ships nowLoad Ready
The internal plate pocket sits flush to your spine, rated to 70lb, keeping weight at your centre of gravity. Hip belt and sternum strap lock the load in place during movement.
Bring your own plate, see FAQYou know the US benchmark. Here is the other option.
American rucking has a default name, and it has earned its reputation. The Y-CO 3 is the premium British-designed alternative. The same serious tool philosophy, a few choices made differently, and a landed price with the customs paperwork already handled.
- + 1000D Cordura shell, bartacked at every stress point
- + Hip belt included as standard, not a paid add on
- + Dual access: top load and full front zip down panel
- + Side access laptop compartment up to 16 inches
- + Lifetime guarantee on materials and workmanship
- + Delivered duty paid, no surprise fee at the door
- › Proven, widely owned, strong community
- › Built around dedicated rucking first
- › Accessories and belts often sold separately
- › A known quantity, and priced like one
We are not here to knock it. We are here to give you a choice.

"Backpacks are tools, not accessories."
That is the principle LBC found in the Y-CO 3 when a national journalist carried it as their only bag for two weeks, across travel, work, day carry and dinners out. It handled every role without feeling compromised, with one note, no external bottle pockets, which a MOLLE attachment solves. Their verdict: excellent. The Coolector went further, calling it the new benchmark for everyday carry and one of the best rucking and EDC packs of the year.
Full specification
Ruck ready out of the box
The internal plate pocket holds your weight flush against your spine, close to your centre of gravity, which is exactly where load should sit for an efficient, comfortable ruck. Rated to 70lb. The included hip belt transfers that weight off your shoulders, the sternum strap keeps it locked through every step.

What people who carry it say
The plate pockets are perfect for my oversized iPad or small laptop, then on a ruck I swap them for plates. The internal bottle holders work for water or charging a phone, and the whole bag opens up to reach the bottom. Classy too, and service was top notch.
Loved this rucksack. Comfortable on the shoulders when weighted and easy to adjust. Hard wearing and robust into the bargain. I would highly recommend it.
The Coolector called the Y-CO 3 "the definitive every-carry rucking machine," naming it the new benchmark for uncompromising everyday carry and rating it among the finest rucking and EDC packs of the year.
Questions, answered
Q1Does the price include US import duties and tax?+
Yes. The Y-CO 3 ships to the United States Delivered Duty Paid (DDP). All import duties and tax are calculated and paid up front, so the price you see at checkout is the price you pay. There is no separate customs bill from the carrier when your bag arrives at your door.
Q2How long does delivery to the US take?+
Typically 4 to 7 business days via tracked courier. Every US order ships tracked, so you can follow it from our workshop to your door.
Q3Do you ship weight plates to the US?+
Not during this initial launch. We are shipping the Y-CO 3 backpack on its own. The internal plate pocket fits standard ruck plates, so you can pair it with a plate you already own. YOMP weight plates are coming to the US shortly after launch.
Q4How is the Y-CO 3 different from the Y-CO 1?+
The Y-CO 1 is the dedicated rucking pack, clean, focused, made for structured load training. The Y-CO 3 keeps that rucking capability and adds everyday carry and travel features: dual access (top load plus a full front zip panel), a side access laptop compartment, a more advanced back system, and the included hip belt. Choose the Y-CO 3 when you need one bag to ruck, carry and travel.
Q5What size laptop fits?+
The dedicated padded, side access compartment takes laptops and tablets up to 16 inches.
Q6How much weight can it carry?+
The internal plate pocket is rated to 70lb, held flush against the back panel. The 10mm EVA back panel, removable hip belt and sternum strap keep heavy loads stable and comfortable through movement.
Q7What colours are available?+
Two: Shadow Black and Coyote. Both are full 1000D Cordura, built identically. The choice is purely the look.
Q8What is your US returns policy?+
We accept US returns within 30 days of delivery on items that are unused and in original, resaleable condition, with all tags and packaging intact. To start a return, email sales@yomp.store with your order number and reason. Return shipping costs are the customer's responsibility, and we recommend a tracked service, as we cannot process returns we do not receive.
Because US orders ship duty paid, any import duties and taxes already paid to customs are non refundable, so refunds cover the product price only, less original shipping. Items showing signs of use, load testing or wear are not eligible for return. Refunds are issued once the bag is received and inspected. This returns policy is separate from, and does not affect, the lifetime guarantee against manufacturing defects.
Q9Who makes YOMP, and what does the name mean?+
YOMP Co is a British company specialising in load training gear, designed in Britain. "Yomping" is British military slang for marching long distances over rough ground under a loaded pack, what the rest of the world calls rucking. We build for that tradition.
Get yours, duty paid.
British-designed. Lifetime guaranteed. Delivered to your US door with nothing left to settle at customs.