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Fourth Element Arctic One Piece

Available 3 - 4 days

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Size Guide
Fourth Element Undersuit Size Guide

Use these size guides to find the best fitting size for your Fourth Element Undersuit garments for you. Please be aware that not all sizes are available in all products. See individual product pages for size availability. Please contact us if you have any questions or require further assistance with sizing.

Please note that not all sizes are available in every garment.

MENS SIZE CHART

Sizes Height   Chest   Waist   Inside Leg*  
Inches Cm Inches Cm Inches Cm Inches Cm
XS Short 5'3"-5'6" 161-169 30-34" 76-86 23-27" 58-68 28.5-30.5" 73-77
XS 5'5"-5'8" 165-172.5 30-34" 76-86 23-27" 58-68 30-31.5" 76-80
S Short 5'5"-5'8" 165-172.5 34-38" 86-96 27-30.5" 68-78 30-31.5" 76-80
S 5'7"-5'10" 170-178 34-38" 86-96 27-30.5" 68-78 31-32.5" 79-83
S Tall 5'9"-6'0" 175.5-183 34-38" 86-96 27-30.5" 68-78 32.5-34" 82-86
M Short 5'7"-5'10" 170-178 38-41.5" 96-106 30.5-34.5" 78-88 31-32.5" 79-83
M 5'9"-6'0" 175.5-183 38-41.5" 96-106 30.5-34.5" 78-88 32.5-34" 82-86
M Tall 5'11"-6'2" 180.5-188 38-41.5" 96-106 30.5-34.5" 78-88 33.5-35" 85-89
L Short 5'9"-6'0" 175.5-183 41.5-45.5" 106-116 34.5-38.5" 88-98 32.5-34" 82-86
L 5'11"-6'2" 180.5-188 41.5-45.5" 106-116 34.5-38.5" 88-98 33.5-35" 85-89
L Tall 6'1"-6'4" 185.5-193 41.5-45.5" 106-116 34.5-38.5" 88-98 34.5-36" 88-92
XL Short 5'11"-6'2" 180.5-188 45.5-49.5" 116-126 38.5-42.5" 98-108 33.5-35" 85-89
XL 6'1"-6'4" 185.5-193 45.5-49.5" 116-126 38.5-42.5" 98-108 34.5-36" 88-92
XL Tall 6'3"-6'6" 190.5-198 45.5-49.5" 116-126 38.5-42.5" 98-108 36-37.5" 91-95
XXL Short 6'1"-6'4" 185.5-193 49.5-53.5" 126-136 42.5-46.5" 108-118 34.5-36" 88-92
XXL 6'3"-6'6" 190.5-198 49.5-53.5" 126-136 42.5-46.5" 108-118 36-37.5" 91-95
XXXL Short 6'3"-6'6" 190.5-198 53.5-57.5" 136-146 46.5-50.5" 118-128 36-37.5" 91-95
XXXL 6'5"-6'8" 195.5-203 53.5-57.5" 136-146 46.5-50.5" 118-128 37-38.5" 94-98

WOMENS SIZE CHART

Sizes UK Sizes USA Height   Chest   Waist   Hips   Inside Leg*  
Inches Cm Inches Cm Inches Cm Inches Cm Inches Cm
6 X Short 4 X Short 5'1"-5'4" 155-162.5 27-30" 68-76 20-23" 51-59 30-33" 76-84 26.5-28" 67-71
6 Short 4 Short 5'2"-5'5" 157.5-165.5 27-30" 68-76 20-23" 51-59 30-33" 76-84 27-28.5" 69-73
6 4 5'3"-5'6" 160-168 27-30" 68-76 20-23" 51-59 30-33" 76-84 28-29.5" 71-75
8 X Short 6 X Short 5'2"-5'5" 157.5-165.5 29 -32.5" 74-82 22.5-25.5" 57-65 32.5-35.5" 82-90 27-28.5" 70-75
8 Short 6 Short 5'3"-5'6" 160-168 29 -32.5" 74-82 22.5-25.5" 57-65 32.5-35.5" 82-90 28-29.5" 71-75
8 6 5'4"-5'7" 162.5-170 29 -32.5" 74-82 22.5-25.5" 57-65 32.5-35.5" 82-90 28.5-30.5" 73-77
10 X Short 8 X Short 5'3"-5'6" 160-168 31.5-34.5" 80-88 25-28" 63-71 34.5-38" 88-96 28-29.5" 71-75
10 Short 8 Short 5'4"-5'7" 162.5-170 31.5-34.5" 80-88 25-28" 63-71 34.5-38" 88-96 28.5-30.5" 73-77
10 8 5'5"-5'8" 165-173 31.5-34.5" 80-88 25-28" 63-71 34.5-38" 88-96 29.5-31" 75-79
12 Short 10 Short 5'5"-5'8" 165-173 34-37" 86-94 27-30.5" 69-77 37-40" 94-102 29.5-31" 75-79
12 10 5'6"-5'9" 167.5-175 34-37" 86-94 27-30.5" 69-77 37-40" 94-102 30.5-32" 77-81
12/14
(12 top/
14 bottom)
10/12
(10 top/
12 bottom)
5'6"-5'9" 167.5-175 34-37" 86-94 29.5-32.5" 75-83 39.5-42.5" 100-108 30.5-32" 77-81
14 Short 12 Short 5'6"-5'9" 167.5-175 36-39.5" 92-100 29.5-32.5" 75-83 39.5-42.5" 100-108 30.5-32" 77-81
14 12 5''7"-5'10" 170-178 36-39.5" 92-100 29.5-32.5" 75-83 39.5-42.5" 100-108 31-32.5" 79-83
16 Short 14 Short 5''7"-5'10" 170-178 38.5-41.5" 98-106 32-35" 81-89 41.5-45" 106-114 31-32.5" 79-83
16 14 5'8"-5'11" 172.5-180 38.5-41.5" 98-106 32-35" 81-89 41.5-45" 106-114 32-33.5" 81-85
18 Short 16 Short 5''7"-5'10" 170-178 41-44" 104 -112 34.5-37.5" 87-95 44-47" 112-120 31-32.5" 79-83
18 16 5'8"-5'11" 172.5-180 41-44" 104 -112 34.5-37.5" 87-95 44-47" 112-120 32-33.5" 81-85
20 Short 18 Short 5''7"-5'10" 170-178 43.5-46.5" 110-118 36.5-40" 93-101 46.5-49.5" 118-126 31-32.5" 79-83
20 18 5'8"-5'11" 172.5-180 43.5-46.5" 110-118 36.5-40" 93-101 46.5-49.5" 118-126 32-33.5" 81-85

SOCK SIZE CHART

Unisex Sizes UK US EU
XS 3-4 4-5 35-37
S 5-6 6-7 38-40
M 7-8 8-9 41-42
L 9-10 10-11 43-44.5
XL 11-12 12-13 46-47
XXL 13-4 14 - 15 48-49

  • Description

    The Fourth Element Arctic is possibly the world's most popular and best selling thermal undergarment and now comes in a simple one piece option. The One Piece Arctic features the same innovative two layer technology developed by Fourth Element.

    The fabric is fast wicking to remove moisture from the skin, low bulk to reduce the additional weight requirements, provides high insulation efficiency and even performs well when wet.

    The suit is fitted with thumb loops to prevent the arms riding up when donning your drysuit, a small zipped pocket on the upper right arm to store valuables, a thinner layer below the knee to accommodate the extra layer of thermal socks and ankle loops to prevent the suit bunching up whilst diving.

    The Arctic One Piece comes from sizes XS to XXXL, with sizes medium, large, extra large and extra extra large also having an option of a shorter leg length.

  • Features
    • Dual Layer
    • Low Bulk
    • Performance when wet
    • Fast wicking fabric
    • Small upper arm zipped pocket
    • Thumb and ankle loops

    Visit the Fourth Element Arctic Features page to find out more.

  • Reviews
  • Returns

    30 DAY RETURNS

    If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!

    Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Too easy!

    Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee but we will let you know about these items before we special order them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return.

    For step-by-step instructions click here