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Fly fishing · Fly boxes · Our take
Fulling Mill Pocket Box
Pocket Box
A slim, pocket-friendly fly box with slit foam and room for up to 122 flies. Cracking for a focused selection of nymphs and smaller patterns, rather than your entire fly collection.
- Measures 20 × 84 × 119 mm.
- Impact-resistant polycarbonate shell with a frosted lid.
- Single-sided insert made from 4 mm high-density, pre-slit foam.
- Listed capacity of up to 122 flies; supplied empty.
Make sure it’s the right one. The single-sided Fulling Mill Pocket Box, available in red, blue and grey. Flies aren't included.
Tackle Index Score
Tackle Index score
A well-focused compact fly box, with its strongest appeal in pocketability and straightforward organisation rather than all-pattern versatility.
- Product Quality8.8/10
- Performance8.7/10
- Impact on Fish Catching7.7/10
- Ease of Use9.1/10
- Value for Money8.3/10
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Who it suits
Is it right for you?
Great for
- River anglers carrying nymphs and smaller flies. The slit foam and compact footprint suit a carefully organised selection for moving between runs and pools.
- Anglers cutting down their session kit. It fits an average shirt or fishing-trouser pocket, so a useful fly selection doesn't have to mean another bulky bag.
Maybe skip if
- Anglers carrying big streamers and bulky dries. The shallow format isn't the obvious choice for long tails, tall wings or generous hackles.
- Anyone wanting one box for their whole collection. Single-sided storage and a pocket-sized footprint favour a selected working assortment rather than every possible option.
The lowdown
Introducing the Fulling Mill Pocket Box
A slim, pocket-friendly fly box with slit foam and room for up to 122 flies. Cracking for a focused selection of nymphs and smaller patterns, rather than your entire fly collection.
- Measures 20 × 84 × 119 mm.
- Impact-resistant polycarbonate shell with a frosted lid.
- Single-sided insert made from 4 mm high-density, pre-slit foam.
- Listed capacity of up to 122 flies; supplied empty.
Quick verdict
Small box, sensible job
The Fulling Mill Pocket Box makes plenty of sense if you like travelling light. Its slim polycarbonate shell, frosted lid and pre-cut foam give you a straightforward way to carry a useful fly selection without filling every pocket.
It's best treated as a working box for a day’s fishing, not a home for every oversized streamer and bushy dry you own. Pack it sensibly, leave delicate patterns some breathing room, and you've got a tidy little setup.
A well-focused compact fly box, with its strongest appeal in pocketability and straightforward organisation rather than all-pattern versatility.
- Product Quality
- 8.8/10
- Performance
- 8.7/10
- Impact on Fish Catching
- 7.7/10
- Ease of Use
- 9.1/10
- Value for Money
- 8.3/10
The impact-resistant polycarbonate shell and high-density foam are sensible materials for a compact working fly box.
The slit-foam layout suits small flies well, while the shallow format limits its usefulness for bulky dressings.
Organised flies can make appropriate changes quicker, but the box itself won't improve presentation or persuade a fish to feed.
Pocket-friendly dimensions, a visible selection and a single foam face keep things straightforward.
There's useful everyday utility for a light-travel setup, although its value depends on the asking price and whether your flies suit the shallow shape.
Head to head
How it stacks up
Side by side with the closest kit we've reviewed. This updates as we add more reviews.
Fulling Mill
Fulling Mill Pocket Box (this one)
Top scorer
Scores are our own, out of 10. Best in each row is in green. Prices change, so check the latest before you buy.
The full rundown
Everything you'll want to know about the Fulling Mill Pocket Box
Some fly boxes seem determined to carry everything you've ever tied, bought or found stuck in your fleece. The Fulling Mill Pocket Box takes a simpler route. It's a slim, single-sided box for keeping a useful selection close to hand, without turning your shirt pocket into a brick. If your ideal session involves a rod, a small bag and a wander rather than a mountain of kit, that's a pretty appealing starting point. Choose the flies for the water ahead, pop them in, and leave the reserve army at home.
At 20 × 84 × 119 mm, this is properly compact. It's sized for an average shirt or fishing-trouser pocket, although the fit will always depend on the pocket you're using. That shallow shape matters when you're moving along a river, climbing a stile or crouching beside a likely run. Less bulk means fewer awkward lumps competing with your tippet, floatant and other bits. It won't magically organise your fishing kit, mate, but it gives you a sensible starting point for trimming things down.
The outer shell is impact-resistant polycarbonate, with a frosted lid that lets you see the flies inside. That's a useful pairing for something likely to share pocket space with the usual bankside clutter. The lid gives you a view of the selection without opening the box, which is handy when you're carrying different boxes for different jobs. Don't expect a frosted surface to show every tiny dressing detail perfectly, though. Think quick recognition of the contents, rather than inspecting a minute nymph through the lid.
Inside, you get a single-sided insert of 4 mm high-density foam with pre-cut slits. Those slits hold the flies, including small nymphs, and give the layout a straightforward sense of order. For river fishing, you could separate your lighter nymphs from the heavier options, then group similar patterns by size. When a shallow glide gives way to a deeper pocket, finding a more suitable fly becomes less of a rummage. The box doesn't make that fishing decision for you; it just helps keep the choices within easy reach.
Fulling Mill lists room for up to 122 flies, which is a generous headline for such a small box. The important bit is 'up to'. Tiny, sparsely dressed patterns and larger, bushier flies make very different demands on the available space. Fill every position with generous hackles or long tails and you'll soon see why maximum capacity isn't the whole story. A slightly leaner selection, with clear gaps between dressings, can be much nicer to use than a packed box that makes every fly change a fiddly extraction job.
Small nymphs are an obvious fit for the idea here, but the wider lesson is to match your selection to the available clearance. The stated 20 mm is the box's overall thickness, not a promise of that much room above the foam. Tall wings, bulky bodies and heavily dressed streamers need a bit more thought. Before closing it, check that nothing is being pinched or pressed against the lid. There's no prize for making a favourite dry fly fit if its carefully shaped hackle ends up looking a bit naff.
For a short evening on a familiar water, this sort of focused storage can be spot on. Take the patterns you expect to need, a few changes of size or weight, and a handful of alternatives for when the fish haven't read the plan. On unfamiliar venues, it also makes sense as a ready-to-hand working box alongside a larger reserve kept elsewhere. Red, blue and grey colour options offer a simple way to tell different selections apart, provided you settle on a system and stick with it.
There are a couple of sensible limits to keep in mind. A tough shell isn't the same thing as a confirmed waterproof seal, so don't treat the Pocket Box as dunk-proof. Give wet flies a chance to dry before they're shut away for longer storage, too. And remember it arrives empty: the fly selection is your job. Overall, the appeal is refreshingly uncomplicated. This is compact storage for anglers who want the right few options nearby, rather than every possible answer stuffed into an already bulging pocket.
Specifications
The nuts and bolts
- Dimensions
- 20 × 84 × 119 mm
- Outer shell
- Impact-resistant polycarbonate
- Lid
- Frosted; allows flies to be seen inside
- Insert
- Single-sided, 4 mm high-density foam with pre-cut slits
- Listed capacity
- Up to 122 flies; flies not included
- Colours
- Red, blue and grey
Specs checked with Fulling Mill, Oct 2026.
Spot a model or spec change?
Our take
Less rummaging, more fishing
The real appeal isn't squeezing in the maximum number of flies. It's having the patterns you're likely to use close to hand, with enough order that changing size or weight doesn't become a pocket-emptying faff.
For river roving or a stripped-back stillwater session, that focused approach is dead handy. A smaller box encourages you to choose properly before heading out.
The box itself
A shallow shell with a straightforward layout
What you're buying is a pocket-sized fly box, not a divided tackle organiser. The polycarbonate shell protects a single foam face, while the frosted lid gives you a view of what's inside. There's no second loaded face to work around when choosing a fly.
The 4 mm high-density foam comes with pre-cut slits. Use those existing cuts rather than making fresh holes all over the insert. Keeping flies in neat groups also leaves you room to pick one out without constantly catching neighbouring dressings.
Worth knowing. The 20 mm measurement is the overall box thickness. Check clearance with your tallest patterns rather than treating that figure as usable internal depth.
Picking your setup
A good match for the angler who likes to keep moving
River anglers carrying small nymphs have a clear use for this format. Set out a few dependable patterns across useful sizes and weights, and you can cover changing depths without lugging your entire collection between pools. Keep the ones you reach for most in easily recognised groups.
It also suits a pared-back stillwater selection or a dedicated box for a particular job. The trick is being realistic about how you fish. If you genuinely switch between lots of bulky patterns, a deeper or larger box is likely to save more faff than trying to make this one do everything.
Worth knowing. Leave a little breathing room around delicate flies. Being able to lift out the right pattern cleanly is more useful than proving you can fill every available position.
Quick answers
Capacity, small flies and looking after your selection
How many flies fit? The listed ceiling is 122. Your practical total depends on hook size, dressing bulk and how much space you leave between patterns. A small-nymph selection should make more efficient use of the layout than a mixed collection full of long tails and broad hackles.
Will it hold small nymphs? Yes, they're specifically included among the flies the pre-cut foam slits can accommodate. Grouping them by bead size or overall pattern size helps you see your options quickly, rather than having to inspect every fly when you want a change.
Can you rely on it being waterproof? No waterproof seal is confirmed here, so keep it out of the drink. Impact resistance is about the shell taking knocks; it doesn't establish protection against water getting inside.
Worth knowing. After a wet session, open the box somewhere dry and let damp flies air properly before putting everything away. It's a simple habit that helps avoid rusty hooks and a sorry-looking selection.
On paper
Pros & cons
What we like
- Slim shape suits travelling light with a focused fly selection.
- Frosted lid lets you see flies without opening the box.
- Pre-cut foam slits accommodate small nymphs.
- Impact-resistant polycarbonate gives the contents a protective outer shell.
Worth knowing
- Slim depth makes bulky, heavily dressed patterns a less natural fit.
- The full 122-fly capacity depends on pattern size and sensible spacing.
- Single-sided storage offers less room to expand your selection.
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Your questions answered
What anglers want to know
The stuff you’d ask your mate on the next peg. Straight answers, no waffle.
01How many flies does the Fulling Mill Pocket Box hold?
How many flies does the Fulling Mill Pocket Box hold?
The listed maximum is 122 flies. Larger hooks and bulkier dressings need more space, so treat that as an upper limit rather than a target for every selection.
02Is it suitable for small nymphs?
Is it suitable for small nymphs?
Yes. Its pre-cut slits are intended to hold flies including small nymphs. Sorting them by size or weight makes finding the next option much easier.
03Is the Pocket Box waterproof?
Is the Pocket Box waterproof?
Don't assume so. The confirmed features include an impact-resistant shell, but not a waterproof seal. Keep it protected from a dunking and let wet flies dry before storing them away.
What anglers say
The word from the bank
Our read: small box, sensible job. The strongest reasons to choose it are slim shape suits travelling light with a focused fly selection. and frosted lid lets you see flies without opening the box.; the main trade-off is slim depth makes bulky, heavily dressed patterns a less natural fit..
Our take on the feedback
Why it appeals
Checked Sept '26 — “Slim shape suits travelling light with a focused fly selection.”
Best fit
Checked Sept '26 — “River anglers carrying nymphs and smaller flies: The slit foam and compact footprint suit a carefully organised selection for moving between runs and pools.”
Worth knowing
Checked Sept '26 — “Slim depth makes bulky, heavily dressed patterns a less natural fit.”
Tackle Index’s take from the product details and fishing fit we checked. We haven’t found enough independent public feedback to call this an angler consensus yet.
Angler score
What our readers rate Fulling Mill Pocket Box
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Owner reports
Own this? Help the next angler.
Quick multiple-choice reports from people who say they own the Fulling Mill Pocket Box. Not verified purchases, and kept separate from our score.
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