Trusted by professional triathletes
REAL J&JLong-Sleeve Wetsuit
For MenAdvanced Performance
R 7,050.00R 9,950.00
Save R 2,900
Material Yamamoto Neoprene
Colour Black / Orange & Blue
Size: S
Men’s Real J&J long-sleeve wetsuit, black with teal and orange accents, angled front view, with Rocket Science Sports logo

Performance is the difference. The RSS Real J&J is built for triathletes who've outgrown their mid-range suit — athletes training consistently, racing longer distances, demanding more from their swim.

Targeted construction delivers gains where they matter most: maximum buoyancy through the core and legs, dedicated 3mm side panels for freer leg movement, and 2mm shoulders, sleeves, knees, and front-thigh zones engineered for full stroke mechanics. The next step toward elite performance — without the elite price tag.

Buoyancy: 5mm thickness through the core, hips, and legs delivers maximum lift — putting your body in the most efficient swim position over long sessions and race distances.

Flexibility: 2mm shoulders, sleeves, knee panels, and front-thigh zones unlock full stroke mechanics — shoulder rotation, arm reach, natural knee bend, full leg drive.

Mobility: Dedicated 3mm side panels run down each leg, allowing freer kicking and lateral movement without compromising warmth.

Fit: Performance-focused anatomical cut — built for athletes who measure their swims in kilometres, not metres.

Designed for: Advanced triathletes, regular open water swimmers, long-distance training, and athletes upgrading from mid-range wetsuits.

Hover a zone or row to see what each thickness does for you.

Find your size using your height and weight. Between sizes? Going down gives a faster, race-focused fit. Going up gives more comfort and ease of movement.

If you fall between standard sizes, our + sizes offer alternative proportions. Message us via the chat box for a personal fit recommendation.

Size Height Weight Chest
XS165-170 cm60-65 kg86-91 cm
M175-180 cm72-80 kg97-102 cm
L180-185 cm80-88 kg102-108 cm
XL185-190 cm88-96 kg108-114 cm
2XL190-195 cm96-105 kg114-120 cm
How to measure: Stand straight, measure chest at the widest point with a relaxed breath. Use cm for accuracy.
Still not sure of your size?

Rinse in fresh water after every use. Hang dry inside-out, away from direct sunlight. Never machine wash, tumble dry, or store wet.

Use a wetsuit-specific shampoo or conditioner once a month to keep the neoprene supple. Avoid contact with petroleum-based products like sunscreen or insect repellent before swimming.

Stored properly, your wetsuit will last seasons.

Free shipping on orders over R 1,500 within South Africa. Standard delivery 2-5 business days.

30-day return window for unworn items in original packaging. See our full returns policy for details.

Free shipping on orders over R 1,500
30-day easy returns
Need help? Chat with our team