Best Training Suits for Swimmers in 2025 (Tested by a World Championship Swimmer)

A great training suit needs to survive thousands of yards in chlorine without bagging out, losing its shape, or disintegrating at the seams. As a competitive swimmer since age 8 — 2008 FINA World Championships silver medalist, two-time U.S. Olympic Trials competitor, and current U.S. Masters American Record holder — I’ve worn every major training suit brand on the market. Here are the best training suits for swimmers in 2025.

#1 Speedo Endurance+ Jammer/One-Piece — Best Overall (~$40–60)

Speedo Endurance+ is the gold standard in training suits for a reason: the chlorine-resistant fabric holds its shape through hundreds of pool sessions. The polyester/PBT blend resists UV and chlorine degradation far better than standard lycra, and it maintains compression without getting loose and baggy over time. I’ve trained in Endurance+ jammers for years and they consistently outlast every other training suit I’ve tried. For serious lap swimmers and competitive athletes, this is the first suit to buy. Buy on Amazon →

#2 TYR Durafast Elite Jammer/One-Piece — Best Runner-Up (~$45–65)

TYR’s Durafast Elite is Speedo Endurance+’s closest competitor — and in some ways it surpasses it. The Durafast Elite fabric is rated to resist chlorine degradation for 300+ hours in the water, and the fit tends to be slightly more compressive than the Endurance+ for swimmers who want a snug, locked-in feel. I’ve used Durafast Elite suits as a training alternate and found they hold up just as well through extended practice blocks. If Speedo’s cut doesn’t work for your body type, TYR is the answer. Buy on Amazon →

#3 Arena Powerskin Carbon Air² Training Suit — Best Value (~$30–50)

Arena’s training lineup is often overlooked in favor of Speedo and TYR, but the Powerskin Carbon Air² is a legitimate contender. It’s slightly less durable than the Endurance+ over the very long haul, but the fit is excellent and the price point is often 20–30% cheaper when on sale. For swimmers who go through a suit per season rather than multi-year use, Arena offers a great balance of performance and value. The compression is consistent and the seam placement is swimmer-friendly. Buy on Amazon →

#4 Deboer Swim Training Suit — My Personal Choice (Code: TE_RANDALL10)

As a Deboer Swim Team Elite athlete, I train in their suits daily. Deboer’s training suits are built with the same hydrodynamic principles as their tech suits — the fabric is smooth, fast through the water, and holds its shape. They’re not the cheapest option, but if you want to train in a suit that mirrors race-day feel, Deboer is the brand to go with. Use code TE_RANDALL10 at deboerswim.com for a discount on the full lineup. Buy on their site →

#5 Speedo Solid Endurance Jammer/One-Piece — Best Budget (~$20–30)

If you’re on a tight budget or buying suits for a team in bulk, the Speedo Solid Endurance is the go-to. It’s not as durable as the Endurance+ but it’s a solid polyester suit that holds up far better than basic lycra. For rec swimmers, triathletes, or anyone doing moderate weekly yardage, this suit will last a full season without issue. At under $30, it’s hard to beat for the price. Buy on Amazon →

Final Verdict

The Speedo Endurance+ is the clear #1 for any serious swimmer — it’s the most durable, most widely available, and best-tested training suit on the market. The TYR Durafast Elite is a worthy alternative if the Speedo cut doesn’t work for you. For budget swimmers, the Speedo Solid Endurance does the job well under $30. And if you train with Deboer gear, their training suit gives you the closest possible race-day simulation in practice — use code TE_RANDALL10 for a discount at deboerswim.com.

Affiliate Disclosure

This post contains affiliate links. If you purchase through these links, I may earn a small commission at no extra cost to you. I only recommend products I have personally used or that have strong performance credentials. All opinions are my own.