By SwimSwam on SwimSwam
If you’re shopping for a tech suit for your 12 & under swimmer, you’re already navigating one of the most heated gear debates in the sport: compression vs. comfort, fit vs. flare, brand loyalty vs. budget. It’s a fine line. You want a suit that makes your swimmer feel fast, but doesn’t squeeze the life out of them. You want something that performs, but doesn’t break the bank. The right swimming suit doesn’t make the swimmer — but let’s not kid ourselves, it can make the difference. On race day, confidence is everything. When a young athlete steps behind the blocks knowing their suit is locked in and built to move, it matters.
Choosing the best tech suit for a developing swimmer is also about knowing what they don’t need. Not every 12-year-old needs a $500, elite-level World Aquatics-approved knee jammer built for World Championship finals. What they do need is a swimming suit that balances light compression, flexibility, and durability — one they can race in confidently without battling shoulder straps for 20 minutes during warmups.
That’s why we took a hard look at the most popular suits for 12 & unders: to help parents, coaches, and swimmers cut through the marketing fluff and get to what matters — real-world performance. We ranked these swimming tech suits based on comfort, durability, price, and overall race-readiness — with extra credit for suits that are easy to get on and off, because let’s face it, time in the warm-down pool is more important than time in the locker room.
Speedo, once again, leads the pack with consistent performance, smart design, and suits that work across every stroke and distance. Their lineup offers something for everyone — from the first-timer suiting up for summer champs to the seasoned age grouper chasing their first AAA cut.
This guide is built for the swim families and age group swimmers who care about getting it right — because when it comes to racing at the next big swim meet, every detail matters.
Note: SwimSwam is independently owned and operated. We are not owned by a nonprofit, governing body, or a retail company. If you order via these affiliate links in this post, you help support our mission of unbiased, athlete-first journalistic swim coverage.
TOP PICKS – SPEEDO DOMINATES
1. SPEEDO Women’s Vanquisher Kneeskin Tech Suit Swimsuit Approx Price: $108 Speedo’s Vanquisher is pound-for-pound one of the best suits you can buy for a 12 & under. It’s easy to get on, fits snugly without cutting off circulation, and performs beautifully across all four strokes. Trusted Speedo construction Clean seams and fluid compression Our #1 pick for age group swimmers who race frequently
2. SPEEDO Girl’s Powerplus Kneeskin Tech Suit Swimsuit Approx Price: $75 This suit might be the best entry-level tech suit on the market. It’s light, flexible, and built for first-time racers just getting used to suiting up. Super accessible price Low drag, high comfort The Speedo badge means quality
3. SPEEDO Women’s Print Vanquisher Kneeskin Tech Suit Swimsuit Approx Price: $112 Same Vanquisher performance, with a splash of fun. The Print series gives young athletes confidence and a chance to stand out behind the blocks. All the performance of the original Fun prints that don’t sacrifice function A top choice for confident young swimmers
4. SPEEDO Women’s LZR Racer Pro Recordbreaker with Comfort Strap Approx Price: $210 Let’s be clear: this suit is more than most 12 & unders need. But if your swimmer is already putting up elite times and racing at Zones or Sectionals, this suit delivers world-class compression. Built for big-time races Comfort strap is a real upgrade The gold standard in high-performance tech
GREAT OPTIONS FROM OTHER BRANDS
5. FINIS Girls’ Fuse Jr. Open Back Kneeskin Tech Suit Swimsuit Approx Price: $84 FINIS built this suit specifically for young bodies — and it shows. It’s flexible, durable, and doesn’t over-compress. Designed with age groupers in mind Great for all strokes Easy to slide on and off
6. ARENA Girls’ Powerskin ST Next Open Back Tech Suit Swimsuit Approx Price: $120 Arena’s ST Next is a top-tier offering with a sharp design and sustainable fabric. It’s a great step-up suit if your swimmer is progressing into serious racing. Solid core compression Lightweight feel Eco-friendly construction earns bonus points
7. A3 PERFORMANCE Women’s Nova Open Back Kneeskin Swimsuit Approx Price: $125 A sleeper pick. The Nova is A3’s best age-group option, delivering a good blend of comfort and squeeze without the sticker shock of pro-level suits. Growing brand with smart design Good fit for leaner swimmers Performs well in breaststroke and IMs
8. DOLFIN Women’s FirstStrike Knee Tech Suit Swimsuit Approx Price: $130 Dolfin’s FirstStrike feels more structured than some others in this category — a great choice for stronger swimmers who want more compression and core hold. Excellent for sprint events Smooth feel in the water High marks for long meet days
STYLE + PERFORMANCE PICKS
9. ARENA Girls’ Powerskin ST Next Leopard Open Back Approx Price: $130 Same suit as the standard ST Next, but with a wild limited-edition print. Style meets performance — and younger swimmers love it. Confidence booster with color Great feel and fit One of the best-looking suits on deck
10. ARENA Women’s Powerskin ST Classic Tech Suit Swimsuit Approx Price: $70 This is Arena’s reliable fallback. It’s been around for years, and while it doesn’t have the latest fabric upgrades, it still gets the job done. Solid value Best for budget-conscious families A bit stiff compared to newer models
11. ARENA Women’s Powerskin ST Next Open Back Approx Price: $128 The women’s version of the ST Next offers a little more compression than the girls’ cut. It’s great for older 12-year-olds who want a tighter race-day fit. Fast feel Quality seams A step up in performance — and price
12. ARENA Women’s Powerskin ST Next Classic Tech Suit Swimsuit Approx Price: $110 This one sits somewhere between the ST Classic and ST Next. It’s an updated design but doesn’t quite hit the same comfort levels of Speedo’s Vanquisher or Powerplus. Good fit for wider builds Mid-range compression Less flexible than Speedo suits
ORDER YOUR TECH SUIT HERE!
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