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Understable Discs

Understable discs are designed to turn more easily during flight, making them ideal for controlled turnover shots, hyzer flips, and effortless distance. When thrown flat, these discs naturally drift right for right-hand backhand players before finishing gently, helping you shape lines that stable discs can’t.

They’re especially useful for players with slower arm speeds who need extra glide and movement without forcing the shot. More experienced players often rely on understable discs for long turnovers, rollers, and technical woods golf where precision and angle control matter most.

Use the filters to sort by speed, turn, glide, brand, or plastic type to find the exact understable disc that fits your throwing style and course conditions.

Filters

  • Kastaplast Berg (K3) Blue | Chrome | 175g
    Kastaplast Berg (K3) Pink | Black | 171g
    In Stock:
    8 left

    Kastaplast Berg (K3)

    Kastaplast
    $14.99 - $14.99
    $14.99
    $14.99 - $14.99
    $14.99

    Flight Numbers Speed: 1 Glide: 1 Turn: 0 Fade: 2 Skill Level: Beginner/Any Disc Type: Putt & Approach Stability: Stable Plastic: K3 More Berg...

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  • Kastaplast Stal (K1) Pink | Purple | 170g
    Kastaplast Stal (K1) Pink | Blue | 175g
    Low Stock:
    4 left

    Kastaplast Stal (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 9 Glide: 4 Turn: 0 Fade: 3 Skill Level: Advanced Disc Type: Fairway Driver Stability: Overstable Plastic: K1 All Plastics: ...

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  • Kastaplast Svea (K1) Black | Holographic | 178g
    Kastaplast Svea (K1) White | Teal | 178g
    Low Stock:
    3 left

    Kastaplast Svea (K1)

    Kastaplast
    $21.95 - $21.95
    $21.95
    $21.95 - $21.95
    $21.95

    Flight Numbers Speed: 5 Glide: 6 Turn: -1 Fade: 0 Skill Level: Any Disc Type: Midrange Stability: Understable Plastic: K1 More Plastics: Kastapla...

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  • Kastaplast Lots (K1) Blue | Oil Slick | 165g
    Kastaplast Lots (K1) Blue | Oil Slick | 165g
    In Stock:
    6 left

    Kastaplast Lots (K1)

    Kastaplast
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Flight Numbers Speed: 9 Glide: 5 Turn: -1 Fade: 2 Skill Level: Any Disc Type: Fairway Driver Stability: Stable Plastic: K1 Line More Plastics: K...

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  • Kastaplast Rask (K1) Yellow | Clear | 176g
    Kastaplast Rask (K1) Blue | Clear | 171g
    Low Stock:
    2 left

    Kastaplast Rask (K1)

    Kastaplast
    $21.95 - $21.95
    $21.95
    $21.95 - $21.95
    $21.95

    Flight Numbers Speed: 14 Glide: 3 Turn: 0 Fade: 4 Skill Level: Advanced Disc Type: Fast Distance Driver Stability: Very Overstable Plastic: K1 L...

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  • Kastaplast Reko (K1) Dark Gray | Holo Dots | 176g
    Kastaplast Reko (K1) Black | Silver | 174g
    In Stock:
    5 left

    Kastaplast Reko (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 3 Glide: 3 Turn: 0 Fade: 1 Skill Level: All skill levels Disc Type: Putt & Approach Stability: Stable Plastic: K1 Line ...

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  • Kastaplast Reko X (K1) Orange | Black | 174g
    Kastaplast Reko X (K1) Purple | White | 175g
    In Stock:
    5 left

    Kastaplast Reko X (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Introducing the Kastaplast K1 Reko X! This highly anticipated disc brings extra stability with a flight rating of 3 | 3 | 0 | 2. Made from super du...

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  • Kastaplast Reko (K1 Soft) Black | Blue Shatter | 172g
    Kastaplast Reko (K1 Soft) Orange | Teal | 173g
    Low Stock:
    3 left

    Kastaplast Reko (K1 Soft)

    Kastaplast
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Flight Numbers Speed: 3 Glide: 3 Turn: 0 Fade: 1 Skill Level: Any Disc Type: Putt & Approach Stability: Stable Plastic: K1 Soft Shop more Rek...

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  • Kastaplast Guld (K1) Poison Green | Chrome | 170g
    Kastaplast Guld (K1) Blue | Blue | 171g
    In Stock:
    5 left

    Kastaplast Guld (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 13 Glide: 5 Turn: -0.5 Fade: 3 Skill Level: Intermediate to Advanced Disc Type: Distance Driver Stability: Stable Plastic:...

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  • Kastaplast Grym X White | Black | 174g
    Kastaplast Grym X Orange | Blue | 170g
    Low Stock:
    1 left

    Kastaplast K1 Grym X

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 12.5 Glide: 5 Turn: 0 Fade: 3 Skill Level: Intermediate to Advanced Disc Type: Distance Driver Stability: Overstable Plast...

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  • Kastaplast Jarn (K1) Smoke | Green Sparkle | 174g
    Kastaplast Jarn (K1) Smoke | Green Sparkle | 174g
    In Stock:
    5 left

    Kastaplast Jarn (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 4.5 Glide: 3 Turn: 0 Fade: 3 Skill Level: Intermediate to Advanced Disc Type: Putt & Approach Stability: Overstable Pla...

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  • Kastaplast Kaxe Z (K1) Light Blue | White | 175g
    Kastaplast Kaxe Z (K1) White | Purple | 169g
    Low Stock:
    2 left

    Kastaplast Kaxe Z (K1)

    Kastaplast
    $20.95 - $20.95
    $20.95
    $20.95 - $20.95
    $20.95

    Flight Numbers Speed: 6 Glide: 5 Turn: 0 Fade: 2 Skill Level: Any Disc Type: Midrange Stability: Overstable Plastic: K1 Dimensions Diameter: 21....

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  • Kastaplast Reko X (K3) Light Blue | Chrome | 170g
    Kastaplast Reko X (K3) Pink | Chrome | 174g
    Low Stock:
    3 left

    Kastaplast Reko X (K3) Putter

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 3 Glide: 3 Turn: 0 Fade: 2 Skill Level: Any Disc Type: Putt & Approach Stability: Stable Plastic: K3 More Reko X plasti...

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  • Kastaplast Reko (K3) Light Blue | Silver | 170g
    Kastaplast Reko (K3) Light Blue | Chrome | 172g
    Low Stock:
    3 left

    Kastaplast Reko (K3) Putter

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 3 Glide: 3 Turn: 0 Fade: 1 Skill Level: All Skill Levels Disc Type: Putter Stability: Neutral Plastic: K3 More Reko Plastic...

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  • Kastaplast Reko (K3 Hard) Green | Chrome | 175g
    Kastaplast Reko (K3 Hard) Pink | Chrome | 176g
    In Stock:
    6 left

    Kastaplast Reko (K3 Hard)

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 3 Glide: 3 Turn: 0  Fade: 1 Skill Level: All Skill Levels Disc Type: Putter Stability: Stable Plastic: K3 Hard Other Plasti...

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  • Kastaplast Kaxe (K3) Red | Silver | 172g
    Kastaplast Kaxe (K3) Blue | Gold | 172g
    In Stock:
    5 left

    Kastaplast Kaxe (K3)

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 6 Glide: 4 Turn: 0 Fade: 3 Skill Level: All Skill Levels Disc Type: Midrange Driver Stability: Stable - Overstable Plastic:...

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  • Kastaplast Kaxe Z (K3) Red | Blue | 172g
    Kastaplast Kaxe Z (K3) Blue | Chrome | 171g
    Low Stock:
    3 left

    Kastaplast Kaxe Z (K3)

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 6 Glide: 5 Turn: 0 Fade: 2 Skill Level: Any Disc Type: Midrange Stability: Stable Plastic: Beadless Dimensions Diameter: 2...

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  • Kastaplast Jarn (K3) Blue | Silver | 170g
    Kastaplast Jarn (K3) Blue | Silver | 170g
    In Stock:
    6 left

    Kastaplast Jarn (K3)

    Kastaplast
    $15.95 - $15.95
    $15.95
    $15.95 - $15.95
    $15.95

    Flight Numbers Speed: 4.5 Glide: 3 Turn: 0 Fade: 3 Skill Level: Intermediate to Advanced Disc Type: Putt & Approach Stability: Overstable Pla...

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