Full canvas does not prove bespoke pattern-making. Choose construction in conjunction with the desired shape and feel, rather than treating it as a substitute for fit evidence.
Proper Cloth explains that full canvas extends through the jacket front to the bottom, whereas half canvas primarily supports the upper front and lapels. Its construction options also distinguish shoulder padding and sleeve-head treatment. (propercloth.com)
Ask the tailor to specify:
- Full canvas, half canvas or another construction.
- Where, if anywhere, adhesive interlining is used.
- Shoulder padding and sleeve-head treatment.
- Full, partial or other lining coverage.
- Which elements of the advertised construction apply to your price tier.
Suitsupply's construction explanation likewise discusses full and half canvas as internal jacket structures. That is separate from the question of whether the customer's pattern is individually developed. (suitsupply.com)
For verification, request an explanation using a sample or unfinished garment and put the agreed specification in the order. Do not treat a label, a photograph or your own pinch test as conclusive certification of every hidden layer.