Porto, Portugal
Porto knit mill
400 gsm loopback, tubular jersey, 2×1 rib
Family-run since 1968
Shop loopbackAbout Weftline
Fewer clothes,made to last.
Weftline makes a small range of everyday clothes for women and men. We choose the fabric first — from mills we can name and visit — and cut simple pieces around it.
Everything we sell is repaired for free for two years. Heavy fabrics, flat seams and a repair promise mean the most sustainable thing about our clothes is that you’ll keep wearing them.
What we believe
01
Fabric first
Every piece starts as a swatch on the table. We pick the weight, the yarn and the finish, then design the simplest shape that does the cloth justice — not the other way round.
02
Mills we can name
Five family mills in four countries make all our cloth. We visit each one every season, and we print the mill on the label inside every garment.
03
Made to be repaired
Flat seams, spare buttons and reinforced stress points, because we fix what we sell. If a seam opens in the first two years, we mend it for free.
- family mills we work with
- 5
- family mills we work with
- countries, all within a day of Porto
- 4
- countries, all within a day of Porto
- pieces in the whole range
- 24
- pieces in the whole range
- of free repairs on everything
- 2 yrs
- of free repairs on everything
From yarn to your wardrobe
Most of our pieces travel less than 400 km from yarn to finished garment. Here is how a Loopback Crew is made.
- 01
Yarn
Long-staple combed cotton, spun in northern Portugal and dyed in the yarn so the colour lasts.
- 02
Knit
Knitted slowly on old circular machines in Porto. Slow knitting leaves the loops open and the fabric soft.
- 03
Cut and sew
Cut by hand in small runs and sewn with flat seams, at a family workshop twenty minutes from the mill.
- 04
Finish
Washed once so it won’t shrink, pressed, and given the woven label that names its mill.
- 05
Repair
When something gives after years of wear, it comes back to the same workshop and is mended for free.
Our mills
The five mills behind every Weftline piece.
Biella, Italy
Biella wool mills
17.5 µm merino jersey and wool twill
Spinning in the valley for four generations
Shop merino
Flanders, Belgium
Flanders linen
290 gsm washed linen twill
Flax grown and woven in the same region
Shop linen
Tyrol, Austria
Tyrol felting
Boiled wool for coats
Knitted, then shrunk in hot water, the old way
Shop the coat
Free repairs
Wear it. Send it back. We fix it.
For two years from delivery we mend seams, buttons, zips and small holes from everyday wear — free, with postage both ways.
- 1Request a repair online with a photo.
- 2Send it with the prepaid label we email you.
- 3It’s back with you, mended, in about two weeks.
What we’re still working on
We would rather tell you than leave it out. These are the parts of Weftline we haven’t solved yet.
Express shipping flies
Standard orders go by road and sea. Express to the US goes by air, so checkout always offers the slower, greener Standard first.
Recycled packaging, not none
Our mailers are recycled paper and our hangers are gone, but we still use a poly bag inside to keep pieces clean. We’re testing a paper one.
Dyeing still uses water
Yarn dyeing uses less than piece dyeing, and our mills treat their water — but it isn’t zero. We publish each mill’s figures as we get them.
