Head · Polyester
Head Hawk
Round co-polyester with Crystal Core technology (pliable inner core, firm outer shell)
Performance ratings
Overview
Head Hawk features Crystal Core technology - a pliable inner core surrounded by a firm outer shell. This creates a string that is firm enough for exceptional control but muted enough to reduce harsh vibrations. "A soft, plush feeling string with a more deadened, controlled response" that feels very connected to the ball. Despite being low-powered, it's very soft and never uncomfortable. Allows players to really swing out on shots without fear of overhitting. Great value at $10-14 per set.
Best for
- Control-oriented players who generate their own power
- Big hitters who need to keep balls in
- Players wanting soft poly feel
- Those transitioning from multifilament
Not ideal for
- Beginners (too low-powered)
- Power seekers
- Maximum spin seekers
Pros
- Excellent control - can swing freely
- Soft, plush feel despite being poly
- Crystal Core reduces vibrations
- Above average spin for round poly
- Great value
- Good tension maintenance
Cons
- Very low power - not for beginners
- Less spin than shaped polys
- Can feel dead at high tensions
- Requires generating own power
Stringer notes
Sweet spot is 52-55 lbs. Great for big hitters. Crystal Core makes it comfortable. Good value option.
Break-in period
1-2 hours.
When to replace
Every 12-15 hours.
Hybrid setup ideas
- Works well as full bed
- Hawk mains + Lynx Tour crosses used by Dominic Thiem
Used by
Dominic Thiem (hybrid with Lynx Tour)
Specifications
- Type
- Polyester
- Construction
- Round co-polyester with Crystal Core technology (pliable inner core, firm outer shell)
- Gauges
- 16, 17, 18
- Colors
- White, Grey, Yellow, Red, Blue
- Set price
- $10–$14
- Reel price
- $100–$130
- Brand
- Head (Austria)
Sources & reviews
Data verified January 2025. Something wrong? Send a correction.
- Specs: Tennis Warehouse
- Pricing: Tennis Warehouse
- Review: Tennis Warehouse Review
- Review: The Tennis Bros Review
- Review: Perfect Tennis Review