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Sakura Koi 24-Color Field Set
The Sakura Koi 24-Color Field Set is the most thoughtfully engineered travel watercolor set on the market. The tin closes with magnets and the fit is tight enough that it doesn't rattle in a bag. The 24 half-pans reactivate in seconds — no pre-wetting needed — and the built-in water brush reservoir holds about 3ml of water, which is enough for a full outdoor sketch. Field-tested on a two-week hiking trip through Iceland.
- ✓Magnetic closure — no rattling
- ✓Water brush reservoir built in
- ✓Reactivates fastest of any set tested
- ✓Genuinely pocket-sized
- ✓24 colors is practical for travel
Winsor & Newton Cotman Field Box
The Cotman Field Box is a classic plein air tin: a half-pan set in a metal box with an integrated mixing palette in the lid. The Cotman formula is consistent — this is the same paint as the full studio set, just in travel format. The lid mixing palette is large enough for practical mixing, unlike some travel sets where you can barely fit a coin-sized wash.
- ✓Cotman quality in travel format
- ✓Large lid palette
- ✓Classic metal tin is durable
- ✓Standard half-pans can be replaced
- ✓Professional appearance
Paul Rubens Portable Watercolor Set
Paul Rubens has made a compact 24-color travel tin that competes with the Cotman at lower cost. The tin is smaller than the Sakura Koi field set but slightly better built — the hinge doesn't feel like it'll fail after 50 open-close cycles. The colors are decent, with the earth tones being particularly strong for field sketching.
- ✓Better build than expected
- ✓Good earth tones for outdoor painting
- ✓Reasonable price for quality
- ✓Decent mixing tray
Schmincke Akademie Compact Set
Schmincke's compact travel set packs 12 of their Akademie colors into a small tin with a clip-on handle that makes it easier to hold while painting standing up. The Akademie line is better than most student paints, and having 12 of them in a tin small enough for a jacket pocket makes this the best premium option for serious plein air painters.
- ✓Akademie quality in travel format
- ✓Clip-on handle for standing work
- ✓Small enough for pocket
- ✓Solid metal construction
- ✓German quality
Himi Jelly Cup Set 56-Color
The Himi Jelly Cup set is the cheapest travel option worth recommending. The round jelly cups are press-fit into a round tin. The colors are adequate for practice and casual painting. Several are noticeably weaker than the others, but at $18 for 56 colors and a travel tin, it's impossible to argue with the entry price.
- ✓Very cheap
- ✓56 colors for experimentation
- ✓Cute round format
- ✓Comes with mixing tray
- ✓Travel tin included
Holbein HWC Travel Set
The Holbein HWC travel set contains 18 of Holbein's Japanese artist-grade colors in a sturdy metal tin with a full-size lid mixing palette. The Holbein formula is the densest of any pan set — the pans don't dry flat but form a dome of paint that makes loading easier. For serious plein air painters who don't want to compromise on paint quality, this is the one.
- ✓Artist-grade Japanese pigments
- ✓Domed pans make brush loading easier
- ✓Full-size mixing palette in lid
- ✓Beautiful metal construction
- ✓Holbein quality is unmatched in pan form
How We Tested
All six sets were used outdoors across multiple sessions — sunny mornings, overcast afternoons, and one session in light rain. Evaluated for closure reliability after repeated opening, reactivation time from cold (how long before paint flows freely), mixing palette usability, and whether pans stayed secure during transport in a pack or bag. The Sakura Koi went on a two-week Iceland hiking trip. Everything else was tested locally over 6 weeks.
Buying Guide
What Makes a Good Travel Watercolor Set?
Four things matter most: closure security (it should not open accidentally in a bag), reactivation speed (you want to be painting within 30 seconds of opening), mixing space (a travel palette with no room to mix is useless), and weight. The Sakura Koi solves all four at the lowest price. As you move up in quality, you trade the built-in water brush for better pigments.
How Many Colors Do You Actually Need for Outdoor Painting?
Twelve is enough if they're well-chosen. Twenty-four is comfortable. More than that is usually unnecessary weight. The key is having a warm and cool version of each primary plus a few earth tones (raw sienna, burnt sienna, raw umber are the most useful outdoors). A set of 12 that includes those covers most natural subjects. The 56-color Himi set sounds like more value but you'll mostly use the same 10 colors repeatedly.
Water Brushes for Travel: Built-In vs Separate
The Sakura Koi's built-in water brush reservoir is convenient for quick sketches but holds so little water that you need to refill often on longer paintings. A separate Pentel Aquash medium water brush holds more water and gives better control. For serious outdoor work, the combination of a quality tin (Holbein or Cotman) plus a Pentel Aquash is more practical than any all-in-one kit.
Related Guides
- full watercolor set guide — all watercolor sets including studio options
- mini watercolor sets — even smaller options for maximum portability
- watercolor supplies guide — brushes, paper, and palettes explained
- watercolor supplies for beginners — what you actually need to start painting
- watercolor nature studies kit — field sketching essentials for painting outdoors
Frequently Asked Questions
What is the best travel watercolor set for beginners?
The Sakura Koi 24-Color Field Set. It has a built-in water brush so you don't need to carry anything extra, the colors reactivate fast, and the magnetic closure keeps it secure in a bag. At $22 it's not a throw-away purchase but it's cheap enough that beginners don't need to worry about babying it.
What do plein air watercolorists actually use?
Experienced plein air painters usually build their own setup: a tin like the Holbein or Cotman Field Box filled with their preferred half-pans, a water brush, and a small sketchbook. The Holbein HWC set is as close as a ready-made kit gets to what serious plein air painters want. The Cotman Field Box is the more accessible version.
Can I take watercolor sets on a plane?
Yes. Pan sets count as solids and go in your carry-on without issue. Tube paints in quantities under 100ml per tube also pass TSA and most international security checks. The Sakura Koi field set, Holbein HWC tin, and any of the pan sets here travel without complications.
How do I prevent pans from rattling in a travel tin?
The magnetic closure on the Sakura Koi eliminates rattling entirely. For other tins, small pieces of foam cut to size between pans stop movement without affecting reactivation. The Cotman Field Box pans sit in molded slots that reduce rattle significantly compared to loose-pan designs.