I do love Tessuti patterns and have made their Jac shirt several times now. The first time I made it as per pattern and it turned out fine. However, I can never resist fiddling with a pattern, and have since settled on some modifications for further versions.
As you can see in the pic above, I have added some ‘swing’ to the back of the shirt by tilting the back pattern piece away from the fold of the fabric when cutting out. This leaves the top part unchanged so it will still fit the collar and shoulders, but adds volume at the CB hem. You can’t really see that I have lengthened it by 5cm too, but here is my original make for comparison, sewn as per pattern. I am wearing it with harem pants, in case you are wonderin what the funny garment is.
Nothing wrong with this version of the Jac, except I am probably acclimatised to the volume of Lagenlook, so I prefer a bit more swing and length, especially when the shirt is worn open as a light jacket. A bit more length also lets the shirt tails peak out from under my jumpers, which I quite like. One thing I have discovered though, lengthening does not look so good without a simultaneous increase in volume at the hem, as you can see with the version, below, cut from the good parts of another worn out doona cover. I have used only the collar stand for a grandpa style collar variation. It is sort of ok, but not quite, without the swing at the back.
The original green version is silk dupioni, which has lost some of its shine and acquired a subtle distressed look after a few years of being worn and washed. Just right for a casual shirt, and I don’t do dry cleaning in any case. All my silks are washed, usually with shampoo as that is formulated for protein fibres, which both human hair and silk are, but in the machine and without fuss. I line dry everything, using my dryer only in emergencies, and to cure my hand-printed projects. All my silks so far have coped very well with this treatment. I don’t cater to primadonna fabrics, except maybe for very special occasion garments like my MOB and MOG dresses, and they get worn only once anyway.
The blue striped fabric is a batik bought in Bali, originally grey and white striped, which had an encounter with the dye pot. Unfortunately I got distracted and forgot to agitate for about an hour, which is a big no-no if you want an even result. So it is a bit blotchy, but thankfully that is not very noticeable due to judicious cutting out. I really like the colour, and with winter around the corner, under jumpers only the collar and tails will be visible in any case.
Regarding the sleeves, I am not a huge fan of traditional sleeve plackets and cuffs. They are useful if you want to roll up your sleeves, but I never do. At least, when wearing the shirts where I have made plackets and cuffs, I don’t remember rolling them up even once. So, being a lazy sewist, I ask myself if the extra time making this is worth it. The Jac has a bracelet length sleeve with a notched hem that can be folded back into a 3/4 length sleeve with a notched cuff. I have lengthened the sleeve to make the full length in shirts I want to wear in winter under jumpers, to avoid potentially scratchy wool around my inner wrists. More about the sewing nitty-gritty on PatternReview.
And here is one more version of the Jac shirt, this time collarless for summer, again in a cotton batik. Like the other versions, it works really well as a light jacket.