Made-to-measure lazy bags
A lazy bag catches your mainsail as it drops and zips closed over the top, so the sail is stowed and covered in seconds. Made to your boom and sail in our Pwllheli loft, from £145 per metre of boom length.
£145
Per metre of boom length
Zip top
With reef-point zips for your reefing lines
Made to fit
Loose-footed, bolt-rope or slider mainsails
UK delivery
Included, or collect from our Pwllheli loft
Why a lazy bag
Drop the main and it falls straight into the bag: no flaking along the boom, no sail ties and no separate cover to fit.
A lazy bag, sometimes called a stack pack, stays on the boom. Lazy lines from the mast hold it open while you lower the sail, then you zip it closed to protect the sail from UV and weather. It’s one of the best upgrades for short-handed and family crews.
What’s included
Built for short-handed sailing
Every lazy bag is made to your measurements in our Pwllheli loft and comes with everything you need to fit it.
Zip along the top
Every bag closes with a heavy-duty zip along the top edge, so covering the sail takes seconds.
Send your measurements →Reef-point zips
Zips at the reef points let you attach your reefing lines easily, without opening the whole bag.
Send your measurements →Strong lazy-line points
Reinforced attachment points at the apex for your lazy lines, built to take the load day after day.
Send your measurements →GRP battens
Supplied with GRP battens to hold the bag taut and neat along the full length of the boom.
Send your measurements →Loose-footed or bolt-rope mainsail? Either is fine. Just tell us which you have on the form.
Send your measurementsHow it works
From your measurements to a fitted bag
Measure up
Take the six measurements on our diagram. We’re happy to talk you through it on a FaceTime call while you’re on board.
Send them over
Fill in the form below with your measurements, sail details and colour choice.
Fixed quote
We check everything and email you a fixed price, worked out at £145 per metre of boom length.
Pay securely
Pay online by card, Apple Pay or Google Pay using the secure link we send you.
Made & sent
Your lazy bag is made in our Pwllheli loft and sent by tracked courier, with UK delivery included.
Send us your measurements
Take the six measurements below with the sail flaked on the boom, then fill in the form. We’ll check everything and email you a fixed price before anything is made.
- A Around the mast
- B Height up the mast, from the bottom of the boom to the top of the flaked sail
- C Around the mast and headboard
- D Around the boom and sail, 30 cm from the mast
- E Length of the foot of the sail
- F Around the boom and sail, 50 mm from the end
Not sure about anything? Call 01758 613266 and we’ll talk you through it, or we can arrange a FaceTime call while you’re on board.
Fabric & colour
PU-coated acrylic canvas
Our go-to fabric for lazy bags is PU-coated acrylic canvas from Solacryl or Sauleda: UV-stable, colour-fast and water-resistant, in a wide choice of colours to match your sprayhood and covers.
Ask about coloursWhy sailors choose Boatshed
Trusted on the water
150+ years combined experience
We're a team of skilled sailmakers with generations of craftsmanship between them.
An independent loft
We source materials from leading marine suppliers and recommend what’s genuinely right for your boat – not what we’re tied to.
Local, on the water every day
Based in Pwllheli and working across North Wales every day. Measuring, pick-up and drop-off are just part of how we work.
Fantastic service, fixed our sail quickly when we tore a seam en route elsewhere so didn't delay our plans too much. If you're lucky you'll even meet a cute four-legged helper!
Good jobs, very good. A1.
Already have one?
We repair lazy bags too
Failed zips, tired stitching, UV-damaged panels and broken battens can usually be repaired for a fraction of the cost of a new lazy bag.
Lazy bag FAQs
We’re here to help
Can’t see your question? Call us on +44 1758 613266 and you’ll speak to the person doing the work.
Ask us a question
What is a lazy bag?
A lazy bag, or stack pack, is a sail cover that stays on the boom. Lazy lines from the mast hold it open, the mainsail drops straight into it, and you zip it closed to protect the sail.
How much does a lazy bag cost?
Our lazy bags are £145 per metre of boom length, so a 4 m boom works out at £580. UK delivery is included, and we’ll confirm a fixed price once we’ve checked your measurements.
How do I measure for a lazy bag?
Use the diagram on this page to take the six measurements, A to F, with the sail flaked on the boom. If you’d like help, we can talk you through it on a FaceTime call while you’re on board.
Will it work with a loose-footed or bolt-rope mainsail?
Yes. Our lazy bags work with loose-footed mainsails and those with a bolt rope or sliders. Just tell us which you have on the form.
Do I need to send you my sail or boom?
No. We make your lazy bag from the measurements you send us, so there’s nothing to post or drop off.
What colours can I choose?
PU-coated acrylic from Solacryl or Sauleda comes in a wide range of colours, so we can match your sprayhood and covers. Ask us if you’d like to see samples.
How long does a lazy bag take?
It depends on the time of year. We’ll confirm a lead time with your quote, and it’s worth ordering ahead of the spring rush.
Let's talk
Ready to measure up?
Send us your measurements and we’ll come back with a fixed price. Prefer to talk it through first? Give us a call.