Men's Biathle Suit - Plain Black | Aquathlon Suit SA

Run. Swim. Run. One suit. Made in South Africa.

Race-ready one-piece men's biathle suit — also worn as an aquathlon or swim-run suit — fully dye-sublimated so the colours never fade, crack or peel. Built for biathle, aquathlon and modern pentathlon, and comfortable enough for every training session in between.

No bike pad — a clean, padless cut made for run–swim–run racing: nothing to hold water on the swim or chafe on the run
YKK back zip — smooth, durable entry with an uninterrupted front print and a secure racing fit
Sleeveless racer cut — free shoulders for a natural swim stroke and running arm swing
Gripper elastic legs — keeps the shorts locked in place from gun to finish line
Front & rear lined — full coverage, support and swim-safe opacity
Fully dye-sublimated — vibrant, colour-fast print that outlasts the season

Fabric: Premium 250gsm PFP performance knit — 82% polyester / 18% spandex. Compressive, breathable, quick-drying, chlorine- and UV-resistant, with the stretch and shape-retention to handle back-to-back run and swim legs in one garment.

Junior sizes: Sizes 22/5XS – 28/2XS are junior sizes at reduced pricing.

Sizing: Choose by your body measurements in cm (below), not your usual clothing size. Our sizes run smaller than international brands — if you're between sizes, go one size up.

Men's / Boys' biathle suit size chart — body measurements (cm)

Size	Chest	Waist	Hips	Shoulder to crotch
22/5XS	59	51	64	52
24/4XS	63	55	68	56
26/3XS	67	59	72	60
28/2XS	71	63	76	64
30/XS	75	67	81	68
32/S	79	71	84	72
34/M	83	75	88	74
36/L	87	79	92	76
38/XL	91	83	96	77
40/2XL	95	87	100	78
42/3XL	100	92	104	79

The letter alias is a rough guide only — our sizing runs smaller than everyday clothing, so go by your measurements first. Junior athletes: measure rather than buying by age.

How to measure

Chest: around the fullest part of your chest, tape level under the arms.
Waist: around the narrowest part of your natural waist.
Hips: around the fullest part of your hips.
Shoulder to crotch: from the top of the shoulder, down the front of the body, through the legs and back to the same shoulder point.

Need a bike pad? This suit is the padless run–swim–run version. For triathlon, see our matching Tri Suits with a sewn-in triathlon pad.

Custom team & club suits: We sublimate to order — add your club colours, sponsor logos and athlete names. Bulk orders or hosted club stores available. Email custom@martinwestdesigns.com to start your custom design.

Care: Rinse in cold water after every session. Cold-water wash, do not soak, do not bleach, do not iron, cool tumble dry only, and wash dark colours separately.