TTDNA renders its own neutral topsheet visualisation for this brand, generated from verified construction data.

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JOOLA · Zack · Inverted

Zack

An entry-level inverted rubber. It favours predictable returns and a medium arc over speed.

ProgressiveZackGrippyEU

Regional availability

Availability
Europe only
Europe catalogue
Listed
United States catalogue
Not listed
Region label
Europe only

Regional availability is not a lifecycle state. A model listed in one region only is still an active JOOLA product.

Technologies

Standard build

TTDNA ratings

Speed66
Spin78
Control96
Power66
Grip60
Tackiness5
Arc80
Catapult45
Throw angle73
Elastic56
Spin sensitivity63
Short game77
Blocking77
Backhand flip78
Counterloop75
Opening loop82
Chop71
Serve72
Service receive88
Difficulty50
Beginner friendly57
Durability76

TTDNA values are analytical 0–100 scores derived from official specifications, construction and verified category data. They are never official JOOLA ratings and are never shown as manufacturer values.

Physical characteristics

Hardness65
Power68
Grip70
Tackiness5
Throw angle80
Catapult49
Dwell time38
Forgiveness66
Spin sensitivity32

Playing characteristics

Short game68
Serve51
Serve receive74
Opening loop71
Loop drive65
Counterloop67
Blocking74
Passive block64
Active block63
Punch block59
Flat hit57
Smash59
Flick64
Banana flick60
Chop66
Fishing60
Lobbing62
Precision69
Stability69
Consistency76
Touch63
Elasticity38
Energy return47
Durability77
Professional difficulty44
Beginner friendly64
Offensive rating65
Allround rating70
Defensive rating68

Variants and configurations

4 variants

Colour, thickness and configuration are variants of one model — never separate products. Colour never changes a rating, MAX and OX stay qualitative labels, and OX carries no sponge hardness.

Red · 1.9 mm

Standard · Sponged · Medium-hard (TTDNA band)

Speed 63 · Spin 77 · Control 99

Red · MAX

Standard · Sponged · Medium-hard (TTDNA band)

Speed 66 · Spin 78 · Control 96

Black · 1.9 mm

Standard · Sponged · Medium-hard (TTDNA band)

Speed 63 · Spin 77 · Control 99

Black · MAX

Standard · Sponged · Medium-hard (TTDNA band)

Speed 66 · Spin 78 · Control 96

Playing characteristics

Skill levels
Beginner · Intermediate
Play styles
Allround · Controlled offense
Aliases
None recorded

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Known users

Wang ChuqinNina MittelhamSarah De NutteOvidiu Ionescu

No public report for this exact sheet. Shown: contracted JOOLA athletes — model use not confirmed.