Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
Boys' H2OTTO 438HF training swim briefs - Puma, front view
Boys' H2OTTO 438HF training swim briefs - Puma, back view
17% off

Boys' training swim briefs H2OTTO 438HF · Puma

£39.00 £32.00
Taxes included.

Boys' training swim briefs, H2OTTO model. Made for the pool: a compact, sporty cut for training sessions, lane work and anything else in the water.

All the details
Size 8 years
Size guide

Size guide and care

Italian size conversion

Our site uses Italian sizes. The table below shows how they convert to the main international sizes.

ITA 🇮🇹 34 36 38 40 42 44 46 48 50 52 54
FRA 🇫🇷 30 32 34 36 38 40 42 44 46 48 50
UK 🇬🇧 2 4 6 8 10 12 14 16 18 20 22
USA 🇺🇸 24 26 28 30 32 34 36 38 40 42 44

Women's sizes

Keep in mind: a clothing size 44 matches size 44 or 46 in the Pinup, so if you wear a 44 → Pinup 46. Only go for 44 if you want a very snug fit.

The Ibiza has a more closed back, so it gives more support and holds the tummy in better. Same sizing rule: if you wear a 44 → Ibiza 46.

Men's sizes

Keep in mind: a clothing size 46 matches size L in the H2otto, so if you wear a 48 → H2otto XL, and so on.

The Ucla follows your clothing size. Both models have a waist drawstring: if you don't like a tight suit, go one size up for comfort around the thighs too.

Training swimsuits

BONESWIMMER training swimsuits Pinup, Ibiza, Maui, H2Otto and UCLA are made of PBT (100% polyester); Milano and the BONESWIMMER x Vira capsule (Bondi, Malibu, New York) of 51% recycled polyester and 49% PBT. In both cases there is no elastic component at all in the yarn. That makes them ready for the hardest sessions and intensive, everyday use. The exact composition of each piece is on its product page, under ‘Materials and care’.

To perform, they have to fit like a second skin. Buy your usual clothing size for a very snug fit, or one size up if you don't want it too tight.

Which means it is perfectly normal to struggle getting them on: once in the water, where everything settles, you have a suit that performs and feels comfortable.

Chlorine can't touch them, but to keep lining and seams in perfect shape, rinse the suit in plenty of cold water after use and let it air dry.

  • NO washing machine
  • NO tumble dryer
  • NO detergents (unless made for sportswear)
  • NEVER fabric softener

Leisure and beach swimsuits

BONESWIMMER swimsuits in these collections contain a share of elastane, so they are easier to put on and comfortable out of the water too. You can wear them all day, not just for training.

For the right fit, buy your usual clothing size. Over time the suit adapts to your shape thanks to the stretch in the fibre.

Chlorine does damage these fabrics: to make your suit last, rinse it in plenty of cold water after EVERY use and let it air dry.

  • NO washing machine
  • NO tumble dryer
  • NO detergents (unless made for sportswear)
  • NEVER fabric softener

Not sure about your size?

Email info@boneswimmer.it: our Customer Service team will gladly help you choose.

To give you the best advice, tell us your:

  1. Height
  2. Weight
  3. Usual clothing size
  4. Usual underwear size
  5. Intended use (intensive or occasional training...)

That way it is easier to find the right model and size for you.

  • Chlorine resistantTechnical fabric made for frequent pool use
  • Technical fitClose-fitting, like a second skin
  • Made in ItalyDesigned and made in Italy, since 2004

Details

Have a question about this item? Write to us

Description

Boys' training swim briefs, H2OTTO model. Made for the pool: a compact, sporty cut for training sessions, lane work and anything else in the water.

H2OTTO model. Briefs with a waist drawcord and a no-frills build, designed to stay put while he moves.

Fabric. 100% PBT polyester, elastane-free.

Fit. Technical, close-fitting. Check the BONESWIMMER size guide before you pick the size.

The BONESWIMMER signature. H2OTTO gives kids' training a clean, practical take that keeps the focus on swimming.

Size and fitClose fit: your usual size or one size up
  • Close-fitting, like a second skin. Your usual size for a snug fit, one size up for more comfort.
Size guide
Materials and care100% PBT polyester
Fabric
Speed Line by M.I.T.I. (Bergamo): 100% polyester with PBT yarn, 180 g/m², white and sublimation-printed at a print house near our atelier. 4-way stretch, excellent coverage, chlorine resistant, UV protection; OEKO-TEX Standard 100 and bluesign certified. No elastane: a close, stable fit in the water.
Composition
100% PBT polyester
Lining
Charme by Piutrenove (Como), 82% polyamide and 18% elastane: support and comfort, even when wet.
Care
Rinse in fresh water after every use, do not wring, dry in the shade away from heat. No washing machine, tumble dryer or fabric softener.
Production
Designed, printed and sewn in Italy, between Gallarate and Busto Arsizio.
How and where we make our swimwear
Shipping and deliveryUnited Kingdom · calculated at checkout
Cost
calculated at checkout
Preparation
24/48 hours for items in stock
Delivery
2–3 working days after dispatch
Shipping terms
Returns and exchangesLast Chance: limits on returns and exchanges may apply

For Last Chance items, limits on returns and exchanges may apply, within what the law allows.

Return terms

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