person training for a marathon

First Marathon Kit Checklist: Get It Sorted in Training (Not the Week Before Race Day)

Marathon training isn’t just building fitness — it’s when you figure out what kit actually works for your body. The biggest first-timer mistake is leaving kit decisions until race week: new shoes, new socks, new gels, new hydration… and then wondering why you’re blistered and stressed by mile 10.

man training for his first marathon

Use this checklist to build your setup during training, test it on long runs, and make race day feel familiar.

           Rule: nothing new on race day — your kit should feel boring by taper.   

The training-first kit checklist (what to lock in early)

Shoes (choose early, then commit)

For most first-time marathoners, your marathon shoe is simply your comfortable daily trainer, the pair you can happily run long in, week after week.

  • Prioritise comfort and stability at long-run pace, not “fastest-looking” shoes.
  • Start testing early enough that you can do multiple long runs in your chosen pair.
  • If you’re considering a race shoe (including plated options), introduce it gradually in training once your long runs feel solid — and still make sure it’s long-run tested before race day. 
  • Browse out road running shoes here.

Socks (blister control starts here)

Socks are one of the cheapest upgrades and one of the biggest difference-makers over 26.2 miles.

  • Avoid cotton — it holds moisture and increases rubbing.
  • Test socks on long runs, not just short easy runs.
  • If you’re prone to hotspots, experiment with different thicknesses and consider targeted blister protection.
  • Shop running socks here

Shorts/tights + top (your anti-chafe system)

The kit that feels fine for 45 minutes can turn nasty after 90 minutes of sweat and repetition. Your goal in training is to find a combo that stays comfortable when you’re tired and salty.

  • Pay attention to seams and where fabric folds when you move.
  • Make sure pockets/storage don’t bounce or rub.
  • If you’ll wear a specific top on race day, test it on long runs in similar conditions.
  • Shop shorts/tights here

Sports bra (if relevant)

A marathon is where small rub points become big problems.

  • Test support on long runs and in wet weather.
  • If you plan to wear a hydration vest, test the bra + vest combo together.
  • Shop sports bras here

Anti-chafe + blister prevention (start now)

Don’t wait until you’ve already got a raw patch. Use training to build a routine that becomes automatic before long runs.

Common hotspots to plan for:

  • Inner thighs
  • Underarms
  • Bra lines
  • Nipples
  • Toes/heels

What to test in training:

  • Anti-chafe balm where you routinely rub
  • Tape/plasters for known hotspots
  • Blister plasters in your long-run kit “just in case”
  • Shop blister prevention here

Hydration carry (belt/vest/handheld)

Even if your race has plenty of water stations, training is when you learn what’s comfortable and what you can actually use while moving.

  • Belts are simple and light; vests are great for carrying more, but must fit properly to avoid bounce.
  • Practise taking drinks while running — it’s a skill.
  • Use your long runs to test access (can you grab a gel easily?) and comfort (does it rub after 60–90 minutes?).
  • Shop hydration systems here

Fuel (gels/chews/drinks) — train your gut

Fueling is part of marathon fitness. You’re not just training legs — you’re training your stomach to handle carbs at effort.

  • Start practising early, especially on long runs.
  • Test what your stomach tolerates and what’s easy to take when tired.
  • Practise opening gels with sweaty hands and taking them without stopping.
  • Keep it consistent: switching fuels in race week is a classic mistake.
  • Shop energy bars and gels here

For a simple primer on gels (including common mistakes), London Marathon Events has a solid guide: “The dos and don’ts of using energy gels” here

Layers + weather kit (UK reality check)

In the UK, your marathon block will likely include cold mornings, wind, rain, and unpredictable swings. Build options, not panic purchases.

  • Light jacket or gilet for wind/rain days
  • Cap/visor (works for rain and sun)
  • Gloves for cold long runs (cold hands make fueling harder than you think)

Pro tip: dress for the run, not the first five minutes. You should start slightly cool.

Shop UK weather running gear here

What to not leave until race week (and what you can skip)

Here’s the simple filter: if it touches your feet, rubs your skin, or goes in your stomach — test it during training.

Don’t leave these until race week

  • New shoes (even if they feel great in the shop)
  • New socks
  • New shorts/top/bra
  • New hydration belt/vest
  • New gels or drink mix
  • Any anti-chafe method you haven’t tried on a sweaty long run

Things you can skip unless you already know you like them

  • Compression socks/sleeves “just because”
  • Fancy accessories you won’t practise with
  • A full drawer of nutrition before you’ve found what your stomach tolerates
  • “Fast-looking” kit that isn’t comfortable for 2+ hours

A simple timeline: when to test what

This keeps it easy and stops the last-minute scramble.

Weeks 1–4: Get your basics locked in

  • Shoes + socks combo
  • Shorts/tights + top
  • Start spotting early rub points

Weeks 5–8: Add comfort + fuel routines

  • Anti-chafe routine before long runs
  • Begin fueling practice (same brands/flavours repeatedly)
  • Decide on hydration carry if needed

Weeks 9–12: Practise your full long-run setup

  • Long-run outfit (the one you’d happily race in)
  • Hydration + fueling timing
  • Wet weather test (if conditions force it, even better)

Peak long runs: Rehearse race day

  • Wear your full kit
  • Practise breakfast timing + fueling
  • Practise carrying/taking nutrition exactly as you plan to on race day

Taper: Keep kit boring

  • Replace consumables if needed (gels, plasters, anti-chafe)
  • Don’t change shoes or try “something new that might be better”

Quick race-week checklist (no new kit)

  • Same shoes, same socks, same shorts/top — washed and ready
  • Gels/nutrition chosen and counted
  • Anti-chafe/blister kit packed
  • Watch/headphones charged
  • Outfit checked for weather options (cap, gloves, light layer)

If you’ve sorted it in training, race week becomes simple — and you can focus on the run.

If you’re unsure about shoes, sock fit, or any recurring niggles, pop into the store and chat with our team. We’ll help you get your kit dialled in early — so your training feels smoother, you avoid avoidable discomfort, and race day feels straightforward rather than stressful.

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