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Overview
Loaded with a massive sweet spot in an arm-friendly composition, the Ultra 108 v4 arms users with a weapon that builds confidence and dazzles with every swing. Not only does this frame feature the largest head size of Wilson's key performance racket franchises for added power and forgiveness, it also strategically mixes in the groundbreaking FORTYFIVE° carbon construction into the lay-up for enhanced stability and comfort upon contact. Additional upgrades include an expanded Sweet Spot Channel for a boost of power, a sleeker geometry for more ergonomic-oriented comfort and a design that simply wows on the court with a matte finish featuring color-shifting blue tones.
Parallel Drilling
Grommet construction provides a consistent, more forgiving string bed response while dramatically increasing the sweet spot.
FORTYFIVE°
Patent-protected frame layup produces more connected-to-the-ball feel while better complementing the more modern, vertical swing path. Material increases both flexibility and stability without compromise through the swing.
Agiplast
Plant-based bumper, grommet and end cap components reduce overall environmental footprint.
Crush Zone
Innovative grommet system compresses at impact to provide a larger hotspot and increased ball dwell time on the strings, creating better feel and more potential energy that drives explosive power.
Sweet Spot Channel
Cavity on side of frame extends cross strings and increases grommet movement for more power.
Specifications
Age GroupAdult
Cross Section26-27.5-25 DTB
Head Size108 sq in / 697 sq cm
Length27.25 in / 69.22 cm
SeriesUltra
String Pattern16 x 19
Unstrung Balance3 pts HL / 33.5 cm
Unstrung Weight9.5 oz / 270 g
Reviews
Stringing options
Recommendation
Choose your own
Ultra 108 v4 Tennis Racket Frame
Wilson Recommends for this racket:
Red
W
Stencil No Red
W
Stencil
Tension range 50 to 60 pounds, optimum 55 pounds
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Ultra 108 v4 Tennis Racket Frame
CUSTOM STRUNG RACKETS CANNOT BE RETURNED
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Men's Apparel
| Size | Chest | Waist | Inseam |
| S | 36-37 | 30-32 | 32 |
| M | 38-39 | 33-34 | 32.5 |
| L | 40-42 | 35-36 | 33 |
| XL | 43-45 | 37-39 | 33.5 |
| 2XL | 46-48 | 40-42 | 34 |
| Size | Chest | Waist | Inseam |
| S | 91-94 | 77-81 | 81 |
| M | 97-99 | 84-87 | 82 |
| L | 102-107 | 90-92 | 84 |
| XL | 109-114 | 94-99 | 84 |
| 2XL | 117-122 | 102-107 | 86 |
How to measure
Chest
Measure around the fullest part of the chest.
Waist
Measure around the natural waistline.
Seat
Measure around the fullest part of the seat.
Women's Apparel
| Size | Bust | Waist | Hip | Inseam |
| XS | 31-32 | 25-26 | 34-35 | 79 |
| S | 33-34 | 27-28 | 36-37 | 80 |
| M | 35-36 | 29-30 | 38-40 | 81 |
| L | 37-38 | 31-32 | 41-43 | 82 |
| XL | 39-40 | 33-35 | 44-46 | 84 |
| Size | Bust | Waist | Hip | Inseam |
| XS | 78-81 | 64-66 | 86-90 | 79 |
| S | 84-87 | 69-71 | 91-94 | 80 |
| M | 89-92 | 74-77 | 96-102 | 81 |
| L | 94-97 | 79-81 | 104-110 | 82 |
| XL | 99-102 | 84-90 | 112-117 | 84 |
How to measure
Bust
Measure around the fullest part of the bust.
Waist
Measure around the natural waistline.
Hip
Measure around the fullest part of the hip.
Boy's Apparel
| Size | Bust | Waist | Seat | Height |
| XS (6) | 23-24 | 22-23 | 24-25 | 46-48 |
| S (7-8) | 26-27 | 23.5-24.5 | 27.5-28.5 | 49-54 |
| M (10-12) | 27-28 | 25.5-26.5 | 29-30.5 | 55-59 |
| L (14-16) | 30.5-32 | 28-29 | 32-34 | 60-64 |
| XL (18-20) | 33-35 | 29.5-30.5 | 35-36.5 | 66-69 |
| Size | Bust | Waist | Seat | Height |
| XS (6) | 58-61 | 56-59 | 61-64 | 118-124 |
| S (7-8) | 66-69 | 60-62 | 70-72 | 125-138 |
| M (10-12) | 69-71 | 65-67 | 74-77 | 142-150 |
| L (14-16) | 77-81 | 71-73 | 81-86 | 156-162 |
| XL (18-20) | 84-89 | 75-77 | 89-92 | 169-175 |
How to measure
Chest
Measure around the fullest part of the chest.
Waist
Measure around the natural waistline.
Seat
Measure around the fullest part of the seat.
Girl's Apparel
| Size | Chest | Waist | Hip | Height |
XS (6) | 23–24 | 22–23 | 24–25 | 46–48 |
S (7-8) | 26–27 | 23.5–24.5 | 27.5–28.5 | 49–52 |
M (10-12) | 28–30 | 25–26 | 30–32 | 53–57 |
L (14-16) | 32–34 | 28–30 | 34–36 | 58–62 |
| Size | Chest | Waist | Hip | Height |
XS (6) | 58-61 | 56–58 | 61-64 | 118–124 |
S (7-8) | 66-69 | 60-62 | 70-72 | 125–133 |
M (10-12) | 71–76 | 64–66 | 76–81 | 135–145 |
L (14-16) | 81–86 | 71–76 | 86–91 | 148–158 |
How to measure
Bust
Measure around the fullest part of the bust.
Waist
Measure around the natural waistline.
Hip
Measure around the fullest part of the hip.
Men's Tennis Footwear
| US | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| UK | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| EU | 40 | 40 2/3 | 41 1/3 | 42 | 42 2/3 | 43 1/3 | 44 | 44 2/3 | 45 1/3 | 46 | 46 2/3 | 47 1/3 | 48 | 49 1/3 |
| INCH | 9.84 | 10 | 10.23 | 10.43 | 10.62 | 10.82 | 11.02 | 11.22 | 11.41 | 11.61 | 11.81 | 12 | 12.2 | 12.59 |
| US | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| UK | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| EU | 40 | 40 2/3 | 41 1/3 | 42 | 42 2/3 | 43 1/3 | 44 | 44 2/3 | 45 1/3 | 46 | 46 2/3 | 47 1/3 | 48 | 49 1/3 |
| CM | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | 28.5 | 29 | 29.5 | 30 | 30.5 | 31 | 32 |
Women's Tennis Footwear
| US | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 |
| UK | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 9 |
| EU | 36 ⅓ | 37 | 37 ⅔ | 38 ⅓ | 39 | 39 ⅔ | 40 ⅓ | 41 | 41 ⅓ | 42 | 43 ⅓ |
| INCH | 8.66 | 8.85 | 9.05 | 9.25 | 9.44 | 9.64 | 9.84 | 10 | 10.23 | 10.43 | 10.82 |
| US | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 |
| UK | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 9 |
| EU | 36 ⅓ | 37 | 37 ⅔ | 38 ⅓ | 39 | 39 ⅔ | 40 ⅓ | 41 | 41 ⅓ | 42 | 43 ⅓ |
| CM | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27.5 |
Junior Tennis Footwear
| US | 1 | 2 | 3 | 4 | 5 | 6 |
| UK | 13.5 | 1.5 | 2.5 | 3.5 | 4.5 | 5.5 |
| EU | 32 ⅔ | 34 | 35 ⅓ | 36.5 | 37 ⅔ | 39 |
| INCH | 7.67 | 7.99 | 8.3 | 8.66 | 9.05 | 9.44 |
| US | 1 | 2 | 3 | 4 | 5 | 6 |
| UK | 13.5 | 1.5 | 2.5 | 3.5 | 4.5 | 5.5 |
| EU | 32 ⅔ | 34 | 35 ⅓ | 36.5 | 37 ⅔ | 39 |
| CM | 19.5 | 20.3 | 21.1 | 22 | 23 | 24 |
Unisex - Footwear Conversion Chart
| US (Men's) | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| US (Women's) | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 | 14 | 14.5 | 15.5 |
| UK | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| EUR | 36 ⅓ | 37 | 37 ⅔ | 38 ⅓ | 39 | 39 ⅔ | 40 ⅓ | 41 | 41 ⅓ | 42 | 42 ⅔ | 43 ⅓ | 44 | 44 ⅔ | 45 ⅓ | 46 | 46 ⅔ | 47 ⅓ | 48 | 49 ⅓ |
| US (Men's) | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| US (Women's) | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 | 14 | 14.5 | 15.5 |
| UK | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| EUR | 36 ⅓ | 37 | 37 ⅔ | 38 ⅓ | 39 | 39 ⅔ | 40 ⅓ | 41 | 41 ⅓ | 42 | 42 ⅔ | 43 ⅓ | 44 | 44 ⅔ | 45 ⅓ | 46 | 46 ⅔ | 47 ⅓ | 48 | 49 ⅓ |
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