Everything you need to know about sizing, colours, collection and returns. Can't find your answer? Ask your instructor or drop us a message.

Try before you buy. We keep sample sizes at the Manchester Outdoor Fitness van, so try them on at your session before you order. Every item is made specially for you, so getting the size right first matters.
Sizes vary by item, so check that item's size guide before you order. All our size guides are garment measurements in cm, measured flat. The ladies' tees are a tapered fit and come up slimmer than the men's in the same size.
The colours vary by item, so pick yours from the options on each product. The vests and tees come in loads of colours, not just the ones in the photos. The hoodie comes in Royal Blue, Fire Red, Kelly Green and Jet Black. Not sure? Ask your instructor or drop us a message.
The MF / MILITARY FITNESS logo is on the left chest, with MANCHESTER OUTDOOR FITNESS on the back.
Kit is collection only. Once your order is ready, collect it at a session. We don't post kit out.
Every item is made to order, so allow 2 to 3 weeks from ordering until it's ready to collect at a session.
Every item is made specially for you, so we can't exchange or refund kit ordered in the wrong size. That's why we'd always ask you to try sample sizes on at the van first. If an item arrives faulty, tell Graham or drop us a message and we'll put it right.
Tees, vests and long sleeves: wash cold (30°C max). Do not tumble dry, iron, dry clean or bleach.
Hoodie: wash cold, tumble dry on low heat, iron on cool. Do not dry clean or bleach.
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Supplements can be confusing — dozens of products, big promises, and lots of mixed advice. At Manchester Outdoor Fitness, we take a simple approach:
✔ Food first
✔ Training consistency second
✔ Supplements only where they genuinely help
Below is a clear breakdown of evidence-backed supplements that may support performance, sleep, and recovery, depending on your individual needs.
These can support energy, strength, endurance and mental focus during training.
One of the most researched supplements in the world.
Benefits:
Increased strength and power
Better sprint performance
Improved muscle endurance
Supports lean muscle mass
May support cognitive function
Recommended Dose: 3–5g daily
Best For: Anyone training! And everyone according to latest research.
Notes: Safe for long-term use; hydration is important.
A natural stimulant found in coffee, tea, and pre-workout products.
Benefits:
Increased energy and alertness
Improved endurance
Better reaction time
Enhanced motivation
Dose: 100–250mg 30–60 mins before training (or a coffee!)
Notes: Avoid late afternoon/evening to protect sleep.
Supports high-intensity performance.
Benefits:
Delays fatigue
Improves performance in efforts lasting 1–5 minutes
Useful for hill reps, circuits, sprints
Dose: 3.2–6.4g daily
Notes: Can cause harmless tingles (paresthesia).
Especially important during intense cold-weather sessions where hydration is often overlooked.
Benefits:
Better hydration
Prevents cramping
Supports cognitive function
Helps maintain performance
Best For: Sweaty sessions, long runs, warm weather, or low-carb diets.
Good sleep is the foundation of recovery. These supplements may help support better rest — especially during dark, cold winter months.
Supports nervous system relaxation.
Benefits:
Improved sleep quality
Reduced muscle tension
Supports stress regulation
Best For: Restless sleepers or people with high training volume.
An amino acid found in green tea.
Benefits:
Calms the mind without sedation
Helps reduce anxiety and overstimulation
Improves sleep onset when paired with magnesium
Good For: Evening relaxation or pre-bed wind-down.
A hormone naturally released at night.
Benefits:
Helps regulate sleep cycles
Useful during seasonal shifts
Helps with travel-related disruptions
Notes:
Use only occasionally and avoid high doses.
Speak to a clinician if unsure.
A simple amino acid shown to promote deeper sleep.
Benefits:
Improved sleep quality
Reduced night-time restlessness
Supports recovery
Dose: 3g before bed.
Recovery is where progress happens — especially with regular outdoor training, mixed-intensity work and cold-weather sessions.
Not a magic supplement — simply a convenient way to meet daily requirements.
Benefits:
Supports muscle repair
Helps maintain lean mass
Useful when appetite is low
Best For: Post-training or as a snack replacement.
Especially useful if you don’t eat oily fish regularly.
Benefits:
Reduced inflammation
Better joint health
Supports brain function
May improve recovery between sessions
Crucial in autumn/winter due to limited sunlight.
Benefits:
Bone health
Immune support
Mood regulation
Reduced injury risk
Notes:
Vitamin D deficiency is extremely common in the UK winter months.
Supports connective tissue strength.
Benefits:
May reduce joint pain
Supports tendons, ligaments & cartilage
Useful for those increasing running volume
Dose: 10–15g daily with vitamin C.
Supplements can be helpful, but only when the foundations are solid.
Before spending money on pills or powders, consider:
Are you training consistently?
Are you eating enough protein?
Are you getting 7–9 hours of sleep?
Are you hydrating properly?
Are you recovering between sessions?
If these are in place, some supplements may give you an additional edge — whether your goal is fat loss, Hyrox prep, running performance, strength, or simply feeling better day-to-day.
At Manchester Outdoor Fitness, we’re always here to help you find what works best for your body, your goals, and your lifestyle.
⭐ Take the guesswork out of supplements and match your choices to your fitness goals!
Try our FREE Manchester Outdoor Fitness Supplement Calculator:
👉 https://manchesteroutdoorfitness.co.uk/supplements
Kit made for MFers. Outdoor bootcamps in parks across Manchester, led by instructors who are ex-military PTIs.
Email: [email protected]
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