My 10 yo wears age 11-12 underwear he has a chunky bottom but is slim every where else, which would be best age 9-10 or 11-12?

Hi, I bought my 9 year old the 11-12 he’s very slim but he had grown out of the 9-10 .I think the fits are small so maybe try 11-12 there is a draw cord to tighten if loose .hope this helps

Boys Endurance Jamer Swiming Trunks Training Chlorine Resistant Quick Drying

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5862 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

♻️ Swim Clean, Swim Fast – The Future of Training Trunks!

TRUSTED LEGACY - From Speedo, the leader in swimwear since 1928, designed for champions in the making.
ECO CHAMPION FABRIC - Made from 50% post-consumer recycled polyester for a sustainable swim.
RACE READY QUICK DRY - Dries faster so your kid stays comfortable between laps and lessons.
STREAMLINED COMFORT FIT - Internal drawcord waist and medium stretch fabric for freedom of movement.
ENDURANCE GRADE DURABILITY - Super-durable material built to withstand intense training sessions.

Speedo's Boy's Endurance+ Jammer combines 100% chlorine resistance with quick-dry technology and eco-friendly recycled fabric. Designed for comfort and durability, it features a streamlined fit with an internal drawcord waist, making it ideal for young swimmers training hard or racing. Backed by Speedo’s legacy since 1928, this jammer is the top choice for performance and sustainability.

Specifications

ASIN	B094DQ591S
ASIN	B0F6NSBC33
Age Range Description	Kid
Apparel Fabric Stretch	Medium Stretch
Apparel Fabric Weight Class	Medium Weight
Back Style	Closed
Benefits	Quick drying and 100% chlorine resistant
Best Sellers Rank	467 in Fashion ( See Top 100 in Fashion ) 1 in Competitive Swimwear Boys Jammers
Brand Name	Speedo
Chest Size	29 Inches
Closure Type	Drawstring
Colour	Black
Customer Reviews	4.5 4.5 out of 5 stars (1,607)
Customer reviews	4.5 4.5 out of 5 stars (1,607)
Date First Available	28 April 2025
Department	Boy's
Fabric Type	53% Recycled Polyester, 47% Polybutylene Terephthalate
Fit to Size Sentiment	Positive
Fitting type	Fit
Garment Size Country	Great Britain
Item Type Name	Jammer
Item Weight	4179 Grams
Item model number	8-13460
Jeans width (inches)	34 Inches
Lining Description	Spandex
Manufacturer	Speedo
Manufacturer	Speedo
Manufacturer Part Number	8134600001
Material Type	Polyester
Model Number	8-13460
Neck Style	Round Neck
Number of Items	1
Pattern	Foliage
Product Care Instructions	Machine Wash
Rise Style	High Rise
Season and Collection Year	Spring-Summer 23
Size	9-10 Yrs
Size Modifier	Standard
Sleeve Length Description	Sleeveless
Sleeve Type	Sleeveless
Strap Type	Adjustable
Style Name	ECO END+ JAM JM
Swimwear Bottom Form	Jammer
Swimwear Form Type	Bottom Only
Unit Count	1.0 count

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