The structure of a jammer
A jammer runs from the waist to just above the knee. It sits close to the body with light compression. The waistband stays flat instead of rolling. Seams are flat-locked to cut down on chafing through long sessions.
Sizing runs tighter than casual swimwear
Measure around the fullest part of the hips. Cross-check against the brand’s own size chart. Sizing up suits high-volume training where comfort matters most. Sizing down gives a tighter, more streamlined fit for performance sets.
If you’re just starting out
A square-leg cut is an easy first step away from board shorts. A jammer balances coverage, compression, and freedom of movement, which is why it’s the most common choice at club and fitness level.
Compare
| Suit | At a glance | Sizes | Price | |
|---|---|---|---|---|
MP MP Michael Phelps MP Michael Phelps Men’s Fast Jammer | Chlorine-resistantjammer | 22,24,26,28,30,32,34 | $18 | Amazon→ |
 Speedo Speedo Boys Print Jammer - Anthracite | Poly-blendjammer | 3 Years,4 Years,5 Years,6 Years | $18 £13.55 | Allens Swimwear→ |
 Speedo Speedo Boys Print Jammer - Deep Sapphire | Poly-blendjammer | 3 Years,4 Years,5 Years,6 Years | $18 £13.55 | Allens Swimwear→ |
 Nike Nike 5" Volley Short - Cacao Wow | Chlorine-resistantjammerbrief | XS,S,M,L,XL,XXL | $32 $19 £14.41 40% off | Allens Swimwear→ |
 Nike Nike Mens 5" Volley Swim Short - Game Royal | Chlorine-resistantjammerbrief | XXL | $32 $19 £14.41 40% off | Allens Swimwear→ |
 Nike Nike Mens 5" Volley Swim Short - Treeline | Chlorine-resistantjammerbrief | S | $32 $19 £14.41 40% off | Allens Swimwear→ |
SP Sporti Sporti HydroLast Solid Jammer Swimsuit | Chlorine-resistantjammer | 22,24,26,28,30,32,34,36,38,40,42,44 | $23 | Amazon→ |
 Arena Arena Boys Team Swim Solid Jammer | Chlorine-resistantjammer | 24,26,28,30 | $24 £17.71 | Allens Swimwear→ |
 Arena Arena Boys Team Swim Solid Jammer - Black | Chlorine-resistantjammer | 24,26,28,30 | $24 £17.71 | Allens Swimwear→ |
 Arena Arena Boys Team Swim Solid Jammer - Blue | Chlorine-resistantjammer | 24,26,28,30 | $24 £17.71 | Allens Swimwear→ |
 Arena Arena Boys Team Swim Solid Jammer - Navy Blue | Chlorine-resistantjammer | 24,26,28,30 | $24 £17.71 | Allens Swimwear→ |
 Speedo Speedo Boys Eco Endurance+ Jammer | Chlorine-resistantjammer | 5-6 years,7-8 years,9-10 years,11-12 years,13-14 years,15-16 years | $24 £17.71 | Allens Swimwear→ |
 Speedo Speedo Boys Eco Endurance+ Jammer - Navy | Chlorine-resistantjammer | 4 years,5-6 years,7-8 years,9-10 years,11-12 years,13-14 years,15-16 years | $24 £17.71 | Allens Swimwear→ |
 Nike Nike 5" Volley Short - Electric Blue | Chlorine-resistantjammerbrief | XS,S,M,L,XL,XXL | $32 $26 £19.22 20% off | Allens Swimwear→ |
 Nike Nike 5" Volley Short - Pink | Chlorine-resistantjammerbrief | XS,S,M,L,XL,XXL | $32 $26 £19.22 20% off | Allens Swimwear→ |
 Arena Arena Boys Logo Graphic Swim Jammer - Blue River/Water/Multi | Chlorine-resistantjammer | 26,28,30 | $32 $26 £19.41 20% off | Allens Swimwear→ |
 Arena Arena Boys Ondulation Swim Jammer - Black/Multi/Violet | Chlorine-resistantjammer | 26,30 | $32 $26 £19.41 20% off | Allens Swimwear→ |
 Arena Boys Pool Tiles Swim Jammer - Blue/Multi | Chlorine-resistantjammer | 26,30 | $32 $26 £19.41 20% off | Allens Swimwear→ |
 Arena Arena Boys Bold Swim Jammer - Black/Turquoise | Chlorine-resistantjammer | 24,26,28,30 | $27 £20.02 | Allens Swimwear→ |
 Speedo Speedo Boys Endurance+ Logo Jammer - High Risk Red | Chlorine-resistantjammer | 6 years,8 years,10 years,12 years,14 years,16 years | $28 £20.79 | Allens Swimwear→ |
 Speedo Speedo Boys Endurance+ Logo Jammer - Peacoat | Chlorine-resistantjammer | 6 years,8 years,10 years,12 years,14 years,16 years | $28 £20.79 | Allens Swimwear→ |
 Speedo Speedo Boys Endurance+ Logo Jammer - Turkish Sea | Chlorine-resistantjammer | 6 years,8 years,10 years,12 years,14 years,16 years | $28 £20.79 | Allens Swimwear→ |
 Speedo Speedo Boys HyperBoom Splice Jammer - Navy/Green | Chlorine-resistantjammer | 6 years,8 years,10 years,12 years,14 years,16 years | $28 £20.79 | Allens Swimwear→ |
 Speedo Speedo Boys Hyperboom Splice Jammer - Anthracite/Hyper Teal | Chlorine-resistantjammer | 6 Years,8 Years,10 Years,12 Years,14 Years,16 Years | $28 £20.79 | Allens Swimwear→ |
 Speedo Speedo Boys Print Panel Jammer - Anthracite/Hyper Teal | Chlorine-resistantjammer | 5-6 Years,7-8 Years,9-10 Years,11-12 Years,13-14 Years,15-16 Years | $28 £20.79 | Allens Swimwear→ |
 Arena Arena Boys Loud Swim Jammer - Black/Multi | Chlorine-resistantjammer | 22,24,26,28,30 | $29 £21.56 | Allens Swimwear→ |
 Arena Arena Boys Loud Swim Jammer - Navy/Multi | Chlorine-resistantjammer | 22,24,26,28,30 | $29 £21.56 | Allens Swimwear→ |
 Arena Arena Boys Crowded Swim Jammer - Neon Blue/Neon Blue Multi | Chlorine-resistantjammer | 22,24,26,28,30 | $31 £23.49 | Allens Swimwear→ |
 Arena Arena Boys Wave Swim Jammer - Black/Team Red | jammer | 22,24,26,28,30 | $31 £23.49 | Allens Swimwear→ |
 Arena Arena Boys Wave Swim Jammer - Black/Team Royal | Chlorine-resistantjammer | 24,26,28,30 | $31 £23.49 | Allens Swimwear→ |
 Amanzi Amanzi Boys Azure Jammer - Royal | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Boys Jet Jammer - Black | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Boys Memphis Jammer - Green | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Boys Neptune Jammer - Navy | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Mens Azure Jammer - Royal | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Mens Jet Jammer - Black | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Mens Memphis Jammer - Green | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
 Amanzi Amanzi Mens Neptune Jammer - Navy | jammer | 24,26,28,30,32,34,36 | $32 £23.75 | Allens Swimwear→ |
AD Adidas adidas Infinitex Fitness 3-Stripes Jammer | Chlorine-resistantjammer | 28,30,32,34,36,38 | $32 | Amazon→ |
 Arena Arena Boys Fireflow Swim Jammer - Navy/Team Navy/Yellow | Chlorine-resistantjammer | 24,26,28,30 | $32 £24.26 | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Pressure Point Fast Training Jammer - Navy/Royal | jammer | 24,26,28 | $33 £24.95 | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Still Black Training Jammers - Black | Chlorine-resistantjammer | 22,24,26,28 | $33 £24.95 | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Still Ocean Training Jammers - Navy | Chlorine-resistantjammer | 22,24,26,28 | $33 £24.95 | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Tidal Blast Fast Training Jammer - Navy/Pink | jammer | 24,26,28 | $33 £24.95 | Allens Swimwear→ |
FT Funky Trunks Funky Trunks Men’s Blue Bars Jammer Swimsuit | Chlorine-resistantjammer | 30,32,34,36,38 | $34 | Amazon→ |
 Funky Trunks Funky Trunks Boys Muscle Mad Training Jammers - Multi | Chlorine-resistantjammer | 22,24,26,28 | $43 $34 £25.56 20% off | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Pine Gap Training Jammers - Multi | Chlorine-resistantjammer | 22,24,26,28 | $43 $34 £25.56 20% off | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Putty Rules Training Jammers - Multi | Chlorine-resistantjammer | 22,24,26,28 | $43 $34 £25.56 20% off | Allens Swimwear→ |
 Funky Trunks Funky Trunks Boys Royal Wave Fast Training Jammers - Multi | Chlorine-resistantjammer | 22,24,26,28 | $43 $34 £25.56 20% off | Allens Swimwear→ |
 Nike Nike Mens Hydrastrong Solid Jammer - Black | Chlorine-resistantjammer | 28,30,32,34,36,38 | $44 $36 £26.61 20% off | Allens Swimwear→ |
ZO Zoggs Zoggs Men’s Eden Mid Jammer | Chlorine-resistantjammer | 30,32,34,36,38,40,42 | $36 | Amazon→ |
 TYR TYR Mens Triadic Blade Splice Jammer - Multi | Chlorine-resistantjammer | 28,30,32,34,36,38 | $51 $36 £27.00 30% off | Allens Swimwear→ |
 TYR TYR Mens Triadic Blade Splice Jammer - Orange | Chlorine-resistantjammer | 28,30,32,34,36,38 | $51 $36 £27.00 30% off | Allens Swimwear→ |
 TYR TYR Mens Waveform Blade Splice Jammer - Blue | Chlorine-resistantjammer | 28,30,32,34,36,38 | $51 $36 £27.00 30% off | Allens Swimwear→ |
 Speedo Speedo Mens Solid Splice Jammer - Anthracite/Lead Grey | Chlorine-resistantjammer | 28,30,32,34,36,38 | $43 $37 £27.49 15% off | Allens Swimwear→ |
 Arena Arena Mens Team Swim Solid Jammer | Chlorine-resistantjammer | 26,28,30,32,34,36,38,40 | $37 £27.72 | Allens Swimwear→ |
 Arena Arena Mens Team Swim Solid Jammer - Black | Chlorine-resistantjammer | 26,28,30,32,34,36,38,40,42 | $37 £27.72 | Allens Swimwear→ |
 Arena Arena Mens Team Swim Solid Jammer - Blue | Chlorine-resistantjammer | 26,28,30,32,34,36 | $37 £27.72 | Allens Swimwear→ |
 Arena Arena Mens Team Swim Solid Jammer - Navy Blue | Chlorine-resistantjammer | 26,28,30,32,34,36 | $37 £27.72 | Allens Swimwear→ |
 Arena Arena Mens Team Swim Solid Jammer - Neon Blue/Team Orange | jammer | 28,30,32,34,36 | $37 £27.72 | Allens Swimwear→ |
Showing the 60 lowest-priced of 273. Filter the full list in the finder →
Prices and exchange rate as of Oct 27, 2026 (£1 = $1.3347). Allens prices are charged in pounds; the dollar figure is a conversion. Check the retailer for the current price.
On sale now
| Suit | At a glance | Sizes | Price | |
|---|---|---|---|---|
Nike Nike 5" Volley Short - Cacao Wow | Chlorine-resistantjammerbrief | XS,S,M,L,XL,XXL | $32 $19 £14.41 40% off | Allens Swimwear→ |
Nike Nike Mens 5" Volley Swim Short - Game Royal | Chlorine-resistantjammerbrief | XXL | $32 $19 £14.41 40% off | Allens Swimwear→ |
Nike Nike Mens 5" Volley Swim Short - Treeline | Chlorine-resistantjammerbrief | S | $32 $19 £14.41 40% off | Allens Swimwear→ |
 TYR TYR Mens Avictor 2.0 Luminis Jammer - Electric Lime | Low durabilityjammer | Adult 22,Adult 23,Adult 24,Adult 25,Adult 26,Adult 27,Adult 28,Adult 29,Adult 30,Adult 32 | $303 $197 £147.52 35% off | Allens Swimwear→ |
 Speedo Speedo Mens Fastskin LZR Pure Intent 2.0 Jammer - Purple | jammer | Adult 20,Adult 22,Adult 23,Adult 24,Adult 25,Adult 26,Adult 28,Adult 30 | $383 $249 £186.62 35% off | Allens Swimwear→ |
 Speedo Speedo Mens Fastskin LZR Pure Intent 2.0 Jammer - Dark Blue | jammer | Adult 20,Adult 22,Adult 23,Adult 24,Adult 25,Adult 26,Adult 28,Adult 30 | $395 $257 £192.27 35% off | Allens Swimwear→ |
48 suits on this page are 20% off or more. See every deal →
Find your size
Related categories
FAQ
My size is between two options. Which way should I go?
Size up for high-volume training. Size down for performance-focused sets.
When does it make sense to move from a jammer to a brief?
Once you’re comfortable and want to cut drag further, a brief is the natural next step.