B2B BUYER GUIDE · JULY 25, 2026
How to Build a Purchase Specification for Vintage-Washed Heavyweight T-Shirts
A purchase specification turns a creative reference into a quotable, sample-ready and production-ready brief. For a washed heavyweight T-shirt, the document must connect fabric weight, fit, wash character, decoration, quantity allocation and approval steps.
Direct answer
What is a washed T-shirt purchase specification?
A washed T-shirt purchase specification is the buyer-approved document that defines the garment, fabric, wash direction, decoration, quantity mix and acceptance checkpoints required for sampling and bulk production. It should be specific enough for a supplier to identify assumptions before quoting and detailed enough for the buyer to compare the sample with the intended product.
Confirmed commercial framework
Start with the non-negotiable numbers.
Specification sequence
Seven decisions that make the brief quotable.
Define the buyer and sales channel
State whether the program is for a fashion brand, importer, wholesaler or retail sourcing team, and identify the destination market. This gives context for labeling, packing and commercial review without assuming requirements that the buyer has not provided.
Lock composition and target GSM
Specify 100% cotton and select a target within 220–300 GSM. Do not describe the product only as “heavyweight.” The intended silhouette, drape and wash result should support the weight decision.
Provide a measurable fit
Include a measurement chart or a clearly identified reference sample. Record body length, chest width, shoulder width, sleeve length and the intended fit direction. A visual reference alone cannot replace measurements.
Describe the wash appearance
Use references to show the desired vintage character, but define what the buyer is judging: overall fade, seam character, color depth and acceptable visual variation. The sample becomes the practical approval reference.
Match decoration to the washed garment
Choose screen print, DTG, embroidery or a special print according to the artwork and desired finish. State artwork size, placement and color direction so the decoration can be reviewed on the actual washed base.
Allocate the 1,000-piece style MOQ
List colors, sizes and quantities in a matrix. Mixed colors and sizes are supported, but the allocation must still add up to the agreed style quantity and be confirmed before bulk planning.
Define approval gates
Separate sample approval from bulk release. Confirm the garment specification, wash direction, decoration, color and size allocation, labels and packing instructions before the 30-day bulk target is planned.
Buyer comparison
What changes across the 220–300 GSM range?
220–240 GSM
A useful starting range when the buyer wants a substantial cotton T-shirt without making maximum weight the main design feature. Evaluate fit, opacity and wash appearance together.
250–270 GSM
A more structured direction for premium basics and streetwear. Sampling should confirm how the garment hangs after washing and how the neckline supports the body fabric.
280–300 GSM
The most substantial confirmed range. Buyers should review silhouette, comfort, seam behavior and decoration on a physical sample before bulk approval.
Buyer FAQ
Concise answers for procurement teams.
What GSM range is available for heavyweight washed T-shirts?
The confirmed development range is 220–300 GSM for 100% cotton T-shirts. Buyers should select the target weight together with fit, drape, wash character and decoration.
What is the MOQ for a bulk washed T-shirt order?
The confirmed MOQ is 1,000 pieces per style. Mixed colors and mixed sizes can be planned within the agreed style quantity and production allocation.
How long does sampling and bulk production take?
The working targets are 7 days for sampling and 30 days for bulk production after the required specifications and approvals are confirmed. These are targets rather than unconditional guarantees.
Which decoration methods can be used?
Supported options include screen printing, DTG, embroidery and special printing. The selected decoration should be reviewed together with the washed fabric and final garment appearance.
What should a buyer approve before bulk production?
Approve the fit, measurements, 100% cotton fabric and target GSM, wash direction, color range, decoration placement, mixed color and size allocation, labels, packing instructions and final commercial requirements.