



Lock Fast Sinking Fly Line
Sink rate 7 inches per second reaches feeding zones fast, keeping flies level where fish hunt.
- Free Sunray Lock fly reel spool RRP £19.99
- 250' of PE low diameter backing
- 90' Fly line with 2 reinforced welded loops
Reach deeper fish without the wait. This line sinks at 7 inches per second, giving a steady, predictable drop that holds your flies in the strike zone longer. It stays smooth through the cast and helps reduce tangles, making it a strong choice for exploring varied water, from steep drop-offs to deep open lanes.

Stable front turnover, heavy belly sinks quick, carries flies deep.
#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 Fast Sinking Fly Line

UK Customer
Very good quality. Sails out to the backing. Better line than others I have 3x the price!

USA Customer
Just returned from British Columbia, Canada and fished it hard for 4 days and it performed beautifully.

EU Customer
I’ve been fly fishing for fifty years , used many different sinking lines , sink tips etc and they are all notoriously difficult to cast well ,I would say this line is one of the best for casting out , lifts well off the water so all in all very pleased with it
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.






















