If you already know you are buying tails for a school and you want the technical detail, this is that page. If you are still deciding how to source them at all, start with our sourcing guide.
A teaching fleet is not a collection of consumer tails. It is equipment, and it should be specified like equipment.
Start with your actual students, not a size chart
Before you specify anything, get your enrolment records for the last two terms and write down the real numbers: heights, hip measurements, ages, and how many of each.
Almost every school we work with discovers the same two things. They need more of the middle sizes than they assumed. And they have been buying to the extremes for a handful of students who could have been handled with a custom pair rather than four stock sizes sitting unused.
Order to the distribution you actually teach.
Sizing philosophy for a fleet
A consumer wants one tail that fits exactly. A school wants a set that between them fits everyone.
Those pull in opposite directions, and the school wins by accepting a slightly generous fit that covers a size band. A tail that is a little roomy on a small student still teaches the movement. A tail that is too tight teaches nothing, because the undulation cannot travel through it.
Two practical consequences:
Overlap your bands deliberately. If a student sits between two sizes, you want both to work, not neither.
Buy the growth cases custom. For the one or two students at the edges of your range, a custom tail is cheaper than adding a whole stock size to the fleet.
Fabric, in the order it matters
Chlorine resistance matters most. A school tail lives in chlorine six days a week, and swim fabric that would last a consumer years can lose its elasticity in a season at that volume. When it goes the tail bags, and a bagging tail is slower in the water, so your beginners work harder for less.
After that, shape retention under load. Ask how the fabric behaves when a student kicks hard, not how it feels in the hand. Bagged fabric holds water at the knee, and you will see it as a student who tires halfway down the lane and cannot work out why.
Drying speed is worth more to you than hand feel, because in a fleet a tail may be worn again within the hour. And ask whether the print is dye sublimated, which puts the colour into the fibre, or sitting on the surface, where it wears off at the friction points.
Construction
Seams. Ask where the seams sit and how they are joined. In a fleet, seams are the first failure point, because they take the load from a different body every hour.
The fin pocket. This is the second failure point. Ask how it is reinforced.
Fastenings. Whatever opens and closes gets used many times more in a school than in a home. Ask about corrosion resistance if you are anywhere near saltwater.
Repairability. Ask whether the construction can be opened and re-sewn, or whether a failure means replacement. This one question changes your cost per student per term more than the unit price does.
Quantities, and the maths nobody does
Work out tails per class, not tails in total.
Take your largest simultaneous class, add the size spread you need to cover it, then add a margin for tails out for repair. Twenty percent is a reasonable starting margin for a busy school, more if your supplier is far away.
If a repair takes three weeks and you have no margin, you teach three weeks short.
Hygiene and rotation
Six students an hour means a tail may not fully dry between uses. Fabric handles this far better than moulded material, but you still need a system.
You need a drying rack rather than a bag. Moving air, out of the sun.
You need a rotation rather than a favourite. Number your tails and work through them in order, so wear spreads evenly and you can see which ones are ageing.
And keep a log. One line per tail: when it entered service, when it was repaired, when it was retired. After one term that gives you your real cost per tail per student, which is the number that should be driving your next order rather than the unit price.
Storage and transport
If you teach at more than one pool, everything has to fit in a vehicle on a Saturday morning. Fabric tails fold flat, which is why fleets are fabric.
Store rolled rather than hard folded for long breaks, out of direct sunlight, somewhere ventilated. The full care detail is in our care guide.
What to ask for in the quote
Do not accept a price per tail without these attached:
- Fabric composition and weight, and its chlorine behaviour
- Print method
- Seam type and fin pocket reinforcement
- Size range, and whether they will work from your measurement data
- Repair terms: who fixes it, how long, who pays freight
- Lead time range for the first order and for a repeat
- Sample cost, and whether it comes off the order
If a supplier can answer all seven without going away to check, they have equipped a school before.
One thing that is not on the spec sheet
A mermaid tail binds the legs together, so it is equipment rather than a toy, and your fleet specification should assume that. Every student needs to be a competent swimmer, needs supervision in the water, and needs a briefing before the first session. At our own academy the minimum age is six.
Ask any supplier how a student gets out of the tail, and make sure the answer is something a nervous eleven year old can do alone. Ours has an elastic band at the waist and comes off like a skirt, pull from the hip and push down, and because it is built to measurement it sits close rather than loose, so it is not fighting the student while it is on.
This is part of why fabric wins for teaching. A tail that is not moulded to one body can be shared and washed between students, and a tail that can be repaired leaves the rotation when a seam opens rather than staying in service because replacing it would cost too much.
What happens next
TailCraft Studio makes fabric tails in Tabanan, Bali, for schools, studios and resellers, and for our own academy. Our own students are in these tails every week, so anything that fails, fails on us first.
Send us your size distribution and tell us about your pool. We will set up a short call, tell you honestly what we would specify, and send you a written quotation for your fleet.
Email info@diveartsacademy.com or message us on WhatsApp at +62 858 5893 5464.