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Description

The F4 Alpha series thruster is a small sized and balanced fin with a ride number of 5.5. Alphas C6 composite material is carbon and air infused making it super light and responsive with the flex characteristics of the C6.

Specs Side Fins Centre Fin
Area 14.22 14.22
Height 4.37 4.37
Base 4.22 4.22
Foil Flat Symm

 

Delivery & Returns

DELIVERY

AUSTRALIA

Free standard delivery on orders over $79 or $7.99 for orders under $79

$4.99 express delivery for orders over $79 or $9.99 for orders under $79

NZ

$9.99 express delivery for orders over $100 or $17.50 for orders under $100

INTERNATIONAL

$49.99 express delivery for all orders

Click here for more shipping info

RETURNS & EXCHANGES

Click here to view our returns policy

View full product details
 Size Chest (cm) Waist (cm)
6 79-80 61-62
8 84-85 66-67
10 89-90 71-72
12 94-95 76-77
14 99-100 81-82
16 104-105 86-87

How to Measure:

  • To measure your chest circumference, simply place the tape measure under your arms and measure at the fullest part of your chest.
  • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point.
 Size Hip (cm) Waist (cm)
6 87 61-62
8 92 66-67
10 97 71-72
12 102 76-77
14 107 81-82
16 112 86-87

How to Measure:

  • To measure your hip, make sure you have your feet together and measure around the fullest part of your hips.
  • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point. 

Thongs & Slides Sizes

 AU Size EU Size
5 36
6 37
7 38
8 39
9 40
10 41
11 42

 
     Size Height (cm) Chest (cm) Waist (cm)
    4 (Girls 14) 160 - 165 77 - 83 58 - 63
    6 163 - 168 80 - 85 61 - 66
    8 Short 163 - 168 85 - 88 64 - 69
    8 165 - 170 85 - 88 64 - 69
    8 Tall 169 - 174 85 - 88 64 - 69
    10 Short 164 - 169 88 - 93 67 - 72
    10 168 - 172 88 - 93 67 - 72
    10 Tall 171 - 177 88 - 93 67 - 72
    12 170 - 175 93 - 95 71 - 76
    14 172 - 178 95 - 99 75 - 80

    Caps

    Size CM
    OSFM (One Size Fits Most)

    51-61

     

    Hats

    Size CM
    S/M 55-56
    M/L 57-58

    Headwear How To Measure:
    Place a tape measure around your head positioned mid-forehead and just above the ears.


    Belts

    Size CM Inches
    S 68 27
    M 82 33
    L 96 38.5

    Belts How To Measure:
    Please note that belt measurements are from buckle end of belt to centre hole.
     Size Chest (cm) Length (cm)
    S 53 72
    M 55.5 74
    L 58 76
    XL 60.5 78
    XXL 63 80

    How to Measure:

    • To measure your chest, simply place the tape measure under your arms and measure the widest part of your chest (pit to pit).
    • To measure the length, simply place the tape measure at your neck or the highest point of your shoulder and measure to the hem.
     Size Hip (cm) Waist (cm)
    30 94 or below 73-78
    32 95-99 79-83
    34 100-104 84-88
    36 105-109 89-93
    38 110-114 94-98

    How to Measure:

    • To measure your hip, make sure you have your feet together and measure around the fullest part of your hips.
    • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point. 

    Thongs & Slides Sizes

     AU Size EU Size
    8 41
    9 42
    10 43
    11 44
    12 45
    13 46

     

      Caps

      Size CM
      OSFM (One Size Fits Most) 52-62

       

      Hats

      Size CM
      S/M 57
      M/L 59

      Headwear How To Measure:
      Place a tape measure around your head positioned mid-forehead and just above the ears.


      Belts

      Size CM Inches
      S 81.5 32.5
      M 89 35.5
      L 96.5 38.5
      XL 104 41.5
      OSFM One Size Fits Most One Size Fits Most

      Belts How To Measure:
      Please note that belt measurements are from buckle end of belt to centre hole.
         Size Height (cm) Weight (kg) Chest (cm) Waist (cm)
        S 173-178 61-70 93-98 74-79
        MS 174-179 64-73 98-103 74-79
        M 175-180 68-77 98-103 77-83
        MT 180-188 73-82 98-103 77-83
        LS 171-177 73-82 103-108 77-83
        L 178-183 77-86 103-108 83-88
        XLS 174-179 82-91 108-113 88-93
        XL 180-188 82-91 108-113 88-93

        How to Measure:

        • Chest: Simply measure around the fullest part of your chest. Make sure you're measuring tape is wrapped under your arms.
        • Waist: To get your natural waistline, measure just above your hips.
         Size Height (cm) Chest (cm)
        8 120-129 65-69
        10 130-139 70-74
        12 140-149 75-79
        14 150-159 80-84

        How to Measure:

        • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
        • To measure your chest circumference, simply place the tape measure under your arms and measure at the fullest part of your chest.

        Hats & Caps Sizes

        Size CM
        OSFM (One Size Fits Most) 46-56

         

        Thongs Sizes

         AU Size EU Size
        12 31
        1 32
        2 33
        3 34

         
           Size Height (cm) Waist (cm)
          8 120-129 55-59
          10 130-139 60-64
          12 140-149 65-69
          14 150-159 70-74

          How to Measure:

          • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
          • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point. 
           Size Height (cm) Chest (cm)
          10 131-140 66-70
          12 141-150 71-75
          14 151-160 76-80
          16 161-170 81-85

          How to Measure:

          • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
          • To measure your chest circumference, simply place the tape measure under your arms and measure at the fullest part of your chest.
          Size Height (cm) Waist (cm)
          10 131-140 61-64
          12 141-150 65-68
          14 151-160 69-72
          16 161-170 73-76

          How to Measure:

          • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
          • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point. 
          Size Height (cm) Chest (cm)
          2 81-90 45-50
          4 91-105 51-55
          6 106-120 56-60
          8 121-130 61-65

          How to Measure:

          • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
          • To measure your chest circumference, simply place the tape measure under your arms and measure at the fullest part of your chest.

          Hat Sizes

          Size CM
          S/M 55

           

          Cap Sizes

          Size CM
          OSFM (One Size Fits Most) 50-58
          Size Height (cm) Waist (cm)
          2 81-90 44-47
          4 91-105 48-51
          6 106-120 52-55
          8 121-130 56-59

          How to Measure:

          • To measure your height, make sure your are barefoot, have your feet together and measure your height at its highest point.
          • To measure your natural waistline which is just above your hips, simply place the tape measure on the lower part of your stomach and measure your waist at its widest point. 

          Hat Sizes

          Size CM
          S/M 55

           

          Cap Sizes

          Size CM
          OSFM (One Size Fits Most) 50-58