Lock Slow Sinking Fly Line
Designed for a 2 inch per second sink, it stays level in the zone, helping you keep your flies in the top 3-4'.
- Free Sunray Lock fly reel spool RRP £19.99
- 250' of PE low diameter backing
- 90' Fly line with 2 reinforced welded loops
When fish are hunting shallow or mid-water, this slow sink helps you stay in the zone. The 2 inches per second sink rate is gentle and consistent, keeping flies level instead of diving too fast. It casts cleanly and resists tangles, making it easier to cover a mix of water types with confidence.
Plugs into the Sunray Lock reel or wind it onto your own reel's spool.Stable front turnover, heavy belly sinks quick, carries flies in the top 3'.
#5-#6 (36') • #7-#8 (38')
#5- 17g • #6- 19g • #7- 21g • #8- 23.5g
90'
250' PE low diameter backing
What fishers say about the Lock Slow Sinking Fly Line
UK Customer
What can I say, it casts beautifully and sinks slowly. Excellent value for money
USA Customer
I’ve been on the Slow Sink lately and it’s become my favorite. Casting improved, and I’m already eyeing another.
EU Customer
Had two of these lines and found them both to be fantastic for casting and they have a smooth retrieve. Caught many fish with them over the last year.
Wind it onto your own fly reel or...
Plug straight into your Lock reel
Plugging a Lock fly line into a Lock reel is effortless. The self-locating, self-aligning design means no knots, no tangles, and no hassle—just a seamless connection. Simply align the spool, click it into place, and you’re ready to fish in seconds. It’s the fastest, easiest setup you’ll ever use.
It's not just our coatings that are bullet proof
Reinforced welded loop
Our welded loops were already the strongest on the market. That wasn't enough for us, we went one step further and wrapped our welds in a micro thin film of protective tubing. Supple, strong and slim.
Plug your fly line straight into a Lock Reel
Lock Fly Reel
I needed the fly line for a competition. I ordered on Friday and it was on my door matt Saturday morning, amazing
I couldn't believe how quick it was delieverd. It felt like I had just placed the order and it was there! All the way from the UK in a matter of days.
Despite Brexit I took a chance ordering from this UK company. Yes, I had to pay taxes but it's the best fly line I have ever bought and it was cheaper than the American brands.