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  5. JUNIOR SuperTherm® LongJohn (2020)

JUNIOR SuperTherm® LongJohn (2020)

Product Code: 107922
Alternative Image JUNIOR SuperTherm® LongJohn (2020)
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Price: £154.16
JUNIOR SuperTherm® LongJohn (2020)
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New generation Supertherm® 4mm Longjohn developed using enhanced fabrics and an updated fit. The longjohn has a quick dry super soft front panel designed to work in conjunction with the Supertherm® Top, which has a quick dry panel at the back in order to provide superior warmth and comfort around the entire core when worn together. Now with improved relief flap with triple layer construction to reduce water inlet.


- Water based glue construction (no harmful chemicals released in manufacturing)

- Prebent legs and body for optimum fit in watersport applications

- Clean entry system with no Velcro

- Quick dry thermal lining throughout with a super wicking heat boost panel inside chest

- Relief flap at crotch

- ProHike Pad Compatible

- Silicon print on inside of ankles

- Reinforced seams at lower legs for capability to cut legs to a shorter length

- Drainage holes at back of lower legs for quick flushing

- GBS (Glued & Blind Stitched)

- DWR (Durable Water Repellent) coating on front of legs



- Recycled Polyester

- Ventiprene®

- Duratex III seat and knee panels

- Limestone 4mm Neoprene

Size Chart

To use the size chart, find a size that best fits your inside leg, chest and waist measurements. If you can't match all three of these criteria, please take into account your body shape and choose the closest match.

The table can be scrolled to see the full range.

Size Inside Leg Chest Waist
Junior Small 59.5-63.5cm 60-66cm 55-60cm
Junior Large 64.5-67cm 68-81.5cm 63.5-67cm
X-Small 69.5cm 85-92cm 71-76cm
Small 72.5cm 92-97cm 74-76cm
Medium 75cm 97-102cm 79-84cm
Large 77.5cm 102-109cm 87-94cm
X-Large 80cm 109-119cm 97-102cm
2X-Large 81.5cm 119-125cm 104-109cm
Size Inside Leg Chest Waist
Junior Small 23.5-25" 24-26" 22-24"
Junior Large 25.5-27" 28-32" 25-27"
X-Small 27.5" 33-36" 28-30"
Small 28.5" 36-38" 29-30"
Medium 29.5" 38-40" 31-33"
Large 30.5" 41-43" 34-37"
X-Large 31.5" 43-46" 38-40"
2X-Large 32" 46-49" 41-43"
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Product Reviews

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  • Johnny Sargent, Emsworth, 20 October 2020
    Wearing the 2020 Supertherm for the first time was just about the best thing about the Optimist End of Seasons. The new fabric is warm, comfy and comfortable. I used to suffer with skin rub in the elbows and knees. Not any more! The feel is better, and the extra warmth meant I didn't need Polypro underneath at the weekend, so no rucking up. It also seems to have been reshaped and was a much better fit to my body. Well done!