Arctic Undersuit

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Pete Mesley

Rebreather Diver
and Deep Wreck Explorer

Arctic - Extreme Performance Undersuit

The Arctic's two layers of high insulation, low bulk fabric, ensure exceptional levels of thermal protection. Constructed with comfort and utility in mind, the minimalist design provides outstanding performance under closer fitting neoprene drysuits. In a layering system (see here), the Arctic is also suited for use underneath membrane and trilaminate suits.

New: One Piece Arctic Undersuit

arctic one piece

One Piece Arctic:

Probably the World's best selling thermal undergarment is now available in a simple one piece option. Featuring the innovative two layer technology pioneered by fourth element, the One Piece Arctic provides a simple solution to the challenges of thermal protection.

Backed by years of field testing by the Norwegian Navy, the British Antarctic Survey Dive Team, the French Marines and the Danish Navy, the Arctic was designed using high technology fabrics and has been tested in REAL diving conditions from the Arctic to the Antarctic.

Other products in the range, Mens

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    ARCTIC TOP (MENS)

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    ARCTIC LEGGINGS (MENS)

Other products in the range, Womens

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    ARCTIC TOP (WOMENS)

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    ARCTIC LEGGINGS (WOMENS)

Other products in the range, Essentials

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    ARCTIC SOCKS

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    ARCTIC HAT

further information

The Arctic top is designed with a long body portion to ensure adequate overlap between the top and trousers. Thumb loops prevent the sleeves from riding up during donning. Remember to remove them and tuck them back underneath the wrist seals. Tuck the top into the waistband of the trousers before donning drysuit to prevent any separation during the dive.

The Arctic leggings feature secure foot loops to keep leggings in place when donning the drysuit. A high waistband ensures that separation of top and leggings is minimised. Tuck the top into the waistband before donning the drysuit. The lower legs are single layered to prevent too much bulk around the ankles making donning easier. Short, extra short and long leg lengths are available.

The Arctic drysuit undersuit is complemented by the Arctic socks, which completes the thermal protection system, offering low bulk thermal protection to the extremities. The two layer construction is warm and comfortable, and the inner liner can be pulled out from the outer liner to speed drying times.

Arctic - Features

One of the most versatile and popular undersuits on the market today, Arctic combines performance materials with intelligent design. Read more below...

Dual Layer

Dual layer Construction Using a combination of fast wicking, high insulation fabrics, the Arctic creates a micro climate around the diver, keeping the body dry and warm. A high density inner fleece provides superior insulation, with maximum comfort and wicking, whilst the outer layer, which has a water repellant finish, ensures a snug fit.

Low Bulk

Low Bulk Insulation The Arctic requires less loft to perform due to more effective management of air which is held in the fibres of the suit. Instead of maximising the thickness of the layer of air near the skin, the Arctic minimises the movement of air within, reducing the rate of cooling, without any risk of trapping the air and preventing its release from the dump valve.

Performance When Wet

Performance When Wet The Arctic retains a significant degree of its thermal performance when wet, such that wearers have found it possible to complete dives in relative comfort after even the most fundamental drysuit failures. In some cases, divers have not noticed a leak in a neck or wrist seal until after the dive, such is the performance of the fourth element Arctic.

Arctic features

Other features of the Arctic include thumb loops for easy donning and a pocket on the upper right arm for small valuables. Furthermore, unlike other undersuits on the market, the Arctic undersuit is machine washable. Wash cool with half the usual amount of detergent. Spin and line dry, DO NOT tumble dry.

Arctic - Sizing

Use the table below as a guide to help select which Arctic best suits your body type. If you require any further assistance/advice please don't hesitate to contact us.

mens size chart

Sizes Height Chest Waist
Inches Cm Inches Cm Inches Cm
X Small 5'3"-5'5" 160-166 30-34" 86-96 18-22" 46-56
Small-Short 5'3"-5'3" 160-166 Legs Only Legs Only 22-24" 56-61
Small 5'5"-5'8" 166-174 34-38" 86-96 26-28" 66-71
Medium-Short 5'7"-5'10" 171-179 Legs Only Legs Only 30-32" 76-81
Medium 5'9"-6'0" 176-183 38-42" 96-106 30-32" 76-81
Large-Short 5'8"-5'11" 172-180 Legs Only Legs Only 34-36" 86-91
Large 5'11"-6'2" 180-188 42-46" 106-116 34-36" 86-91
X-Large-Short 5'10"-6'1" 177-185 Legs Only Legs Only 38-40" 96-101.5
X-Large 6'1"-6'4" 185-193 46-50" 116-127 38-40" 96-101.5
XX-Large-Short 5'10"-6'1" 177-186 Legs Only Legs Only 42-44" 106.5-112
XX-Large 6'3"-6'6" 190-198 50-54" 127-137 42-44" 106.5-112
XXX-Large-Short 6'1"-6'4" 185-193 Legs Only 137-147 46-48" 117-122
XXX-Large 6'5"-6'8" 195-202 54-58" 137-147 46-48" 117-122

womens size chart (UK Sizes)

Sizes Height Chest Waist Hips
Inches Cm Inches Cm Inches Cm Inches Cm
6 5'3"-5'6" 160-168 30-32" 76-81 22-24" 56-61 33-35" 84-89
8-10 XShort 5'2"-5'5" 157.5-165.5 Legs Only Legs Only 24-26" 61-66 34-36" 86-91.5
8-10 Short 5'3"-5'6" 160-167.5 Legs Only Legs Only 24-26" 61-66 34-36" 86-91.5
8-10 5'4"-5'7" 162.5-170 31-33" 79-84 24-26" 61-66 34-36" 86-91.5
10-12 XShort 5'3"-5'6" 160-167.5 Legs Only Legs Only 26-28" 66-71 35-37" 89-94
10-12 Short 5'4"-5'7" 162.5-170 Legs Only Legs Only 26-28" 66-71 35-37" 89-94
10-12 5'5"-5'8" 165-173 32-34" 81-86 26-28" 66-71 35-37" 89-94
12-14 Short 5'5"-5'8" 165-173 Legs Only Legs Only 28-30" 71-76 36-38" 91.5-96.5
12-14 5'6"-5'9" 167.5-175 34-36" 86-91.5 28-30" 71-76 36-38" 91.5-96.5
14-16 Short 5'6"-5'9" 167.5-175 Legs Only Legs Only 29-31" 73.5-79 38-40" 96.5-101.5
14-16 5'7"-5'10" 170-178 36-38" 91.5-96.5 29-31" 73.5-79 38-40" 96.5-101.5
16-18 Short 5'7"-5'10" 170-178 Legs Only Legs Only 31-33" 79-84 40-42" 101.5-106.5
16-18 5'8"-5'11" 172.5-180 38-40" 96.5-101.5 31-33" 79-84 40-42" 101.5-106.5
18-20 Short 5'7"-5'10" 172.5-180 Legs Only Legs Only 33-35" 84-89 42-44" 106.5-112
18-20 5'8"-5'11" 172.5-180 40-42" 101.5-106.5 33-35" 84-89 42-44" 106.5-112
20-22 5'8"-5'11" 172.5-180 42-44" 107-112 33-37" 89-94 44-46" 112-117
20-22 Short 5'7"-5'10" 173.5-180 42-44" 107-112 35-37" 89-94 44-46" 112-117

International Size Comparison Guide

UK USA France Germany Italy
6-8 4-6 34 32 38
8-10 6-8 36 34 40
10-12 8-10 38 36 42
12-14 10-12 40 38 44
14-16 12-14 42 40 46
16-18 14-16 44 42 48
18-20 16-18 46 44 50
20-22 18-20 48 46 52