Short answer: choose by where your legs sit in the water, then by budget.
- Your legs sink, you're new to triathlon, or you're racing long distance: Float. The Athlex Float V2 (men's, women's) is the value pick; the Apex Float V2 (men's, women's) is Orca's most buoyant suit.
- You hold a reasonable position but want some lift in the legs: Flow. Athlex Flow V2 (men's, women's) or Apex Flow V2 (men's, women's).
- You have a swimming background and stay flat without a pull buoy: Flex. Athlex Flex V2 (men's, women's) or Apex Flex V2 (men's, women's).
- You swim in the ocean but don't race triathlon: look at Orca's Vitalis open water range instead.
The two decisions: buoyancy, then range
Every Orca triathlon wetsuit is named for two things. The second word is the buoyancy profile: Float (most lift in the legs), Flow (balanced) or Flex (least lift, most freedom). The first word is the range: Athlex is Orca's mid-range line and Apex is the premium line. Get the buoyancy right first. A suit with the wrong buoyancy profile costs you more time than any upgrade to Apex gains you.
Float, Flow or Flex: a 2-minute pool test
Swim 50 m of easy freestyle without a pull buoy, then 50 m with one. Then ask yourself:
- Was the pull-buoy lap much easier and faster? Your legs drag. Choose Float.
- A bit easier, but you held a decent line without it? Choose Flow.
- Hardly any difference? You don't need help with position. Choose Flex, so the suit stays out of the way of your stroke.
Two exceptions push you toward Float even if you swim well. One is your first triathlon or first open water season, because extra buoyancy is extra confidence. The other is long-distance racing: over a 3.8 km swim, legs that sit a little low cost more and more as you tire, and Orca aims the Apex Float at exactly that.
Athlex or Apex: is the premium worth it?
Both ranges use Yamamoto neoprene. Apex uses Orca's most flexible grades in the shoulders and arms (Yamamoto 44+ shoulders on the Apex Flow and Flex, 0.88 Free in the Flow's arms) and goes to the maximum lift on the Float (5 mm in the legs, 3 mm through the chest and back). Athlex gets you the same buoyancy profiles for roughly half to two-thirds of the price. The Athlex Float V2 uses 4.5 mm Yamamoto 38+ in the legs.
Our rule of thumb: if this is your first good wetsuit, or you race a few times a season, Athlex is the smarter spend. Apex earns its price if you race often, swim a lot of open water kilometres, or are chasing minutes at the front of your age group.
| Model | Buoyancy | Best for | Neoprene highlights |
|---|---|---|---|
| Athlex Float V2 | High | Legs that sink, first triathlon | 4.5 mm Yamamoto 38+ legs, thin stretchy upper body |
| Athlex Flow V2 | Medium | Decent position, want some lift | Buoyancy panels in the legs, elastic shoulders and arms |
| Athlex Flex V2 | Low / neutral | Swim background | Thin upper body panels, neutral buoyancy |
| Apex Float V2 | Highest | Long-distance, legs that sink | 5 mm legs, 3 mm chest and back, Yamamoto 40+ shoulders |
| Apex Flow V2 | Medium | Good technique, want support | Yamamoto 44+ shoulders, 0.88 Free arms |
| Apex Flex V2 | Low / neutral | Strong swimmers | Orca's most flexible suit, Yamamoto 44+ shoulders |
Every model comes in men's and women's cuts (Orca's women's suits use its V Fit pattern). Tap a suit for today's price and sizes.
Swimming in Australia: water temperature and race rules
Most Australian age-group triathlons allow wetsuits when the water is below about 24.5°C, and many make them compulsory when it's cold. Summer races in Queensland and northern NSW are often too warm, so a trisuit or swimskin is the legal option there. Your race's athlete guide has the final word.
For cold ocean swimming outside a race, in Port Phillip, Tasmania or South Australia in winter, the Vitalis Thermal has a thermal lining for colder water. The Vitalis Hi-Vis adds high-visibility panels so boats and paddlers see you.
Getting the fit right
A triathlon wetsuit should feel tight on land: snug at the neck, no water pockets in the lower back, and full shoulder movement once the suit is pulled up properly through the legs and torso. Most fit problems are a suit that hasn't been pulled up high enough. Use our Orca wetsuit fitting guide and size chart, and if you're between sizes, ask us before you order.
FAQs
Is the Orca Athlex Float good for beginners?
Yes. It's the suit we suggest most often for a first triathlon: high buoyancy in the legs keeps you flat and calm in the water, and it costs a lot less than the Apex Float.
What's the difference between Orca Athlex and Apex?
Both come in Float, Flow and Flex. Apex is Orca's premium range, with more flexible neoprene through the shoulders and arms and the most buoyant Float suit. Athlex gives the same buoyancy choices for less money.
Float or Flow if my legs only sink a little?
Flow, unless it's your first season or you're racing long distance, when Float's extra lift is worth having.
Can I use a triathlon wetsuit for ocean swimming?
Yes. Triathlon suits are thin in the shoulders for an easy stroke, which suits regular ocean swims. If you swim in cold water through winter, a thermal suit like the Vitalis Thermal will keep you warmer.
When are wetsuits banned in Australian triathlons?
Generally when the water is about 24.5°C or warmer for age-group racers. Check your race's athlete guide, because the race organiser announces the call on the day.