1 / 10Light Crewneck Short Sleeve T-Shirt
Light crewneck short sleeve tee for custom team t-shirts. 30s cotton at 140 g/㎡ keeps it cool for summer sports days and staff wear; darker colors are recommended as pale ones can show through. 6 sizes from S to 3XL, 18 colors, KRW 4,400 per piece at 1,000 pcs without options.
Per piece4,400 KRW
Lightweight crewneck short-sleeve T-shirt in 100% cotton
Models are AI-generated virtual people. Actual fit and color may differ.
Model 166 cm, wearing M
Who is it for?
- Teams that need T-shirts for a summer event or group
- Buyers looking for the lowest price on group T-shirts
- Anyone who needs small-batch orders, from 1 piece
- Teams with a logo file but no design ideas yet
Which companies have ordered?
Six companies in gaming, consumer goods and IT have ordered.These are real orders from clients who agreed to be featured. We make everything from merch for sale to event wear, giveaway T-shirts and kit items.
“With careful sample checks and on-time delivery management, O-SEAN is a partner we trust. This is our second event with O-SEAN, and it feels reassuring. We will work with O-SEAN again next year.”
Who has the better price?
At 1,000 pieces, it is KRW 4,400 per piece, lower than both suppliers we compared.We compared only minimum order quantity and price per piece at the same quantity.
| Item | O-SEAN | Company A | Company B |
|---|---|---|---|
| Minimum order | 1 pc | 30 pcs | 1 pc |
| Price per piece | KRW 4,400at 1,000 pcs | KRW 6,050 | KRW 9,500 |
Basis: price lists published by each supplier, checked on September 21, 2026, for 1,000 blank pieces, excluding VAT. Compared suppliers are kept anonymous. The lowest price varies with quantity, specs and print conditions.
When will I receive it?
We deliver 2 weeks after design proof approval.Approve the proof on day 1 and you receive it on day 14. Lead time may vary with quantity and decoration method.
Day 1 Proof approval · Day 14 Delivery
Five things to decide when you order
- 1Quantity
- 2Colors
- 3Headcount per size
- 4Logo file
- 5Print position
Lead time counts from the proof approval date and may vary with quantity and decoration method.
For summer events,
light 30s cotton
A lightweight crewneck short-sleeve T-shirt you can custom order from 1 piece.It is a popular basic tee, so we recommend it for event group T-shirts.
Details
- Made from 100% cotton, a natural fiber.
- Knit as 30s single jersey, so it is thin and light to wear.
- With a logo print, it works as merch for sale, event wear, giveaway T-shirts or kit items.
What fabric is it?
100% cotton 30s single jersey, fabric weight 140g/㎡.Thinner and lighter than 17s or 20s, it suits outdoor events in midsummer and staff T-shirts.White and light colors can be slightly see-through. If that matters, we recommend a dark color or 20s/14s fabric.
| Count | Weight | Thickness | Sheerness | Best for |
|---|---|---|---|---|
| 30s | 140g/㎡ | Thin and light | Somewhat | Summer events, layering |
| 20s | 170g/㎡ | Medium | Low | Spring/fall group wear |
| 17s | 190g/㎡ | Medium-thick | Low | Store and staff uniforms |
| 14s | 250g/㎡ | Thick and sturdy | Almost none | Long-wear uniforms |
The higher the count, the finer the yarn, so the fabric is thinner and more see-through.
The weight of one square meter of fabric. The higher the number, the thicker and heavier the cloth. It is not the weight of one garment.
Shows how thick the yarn is. The higher the number, the finer the yarn and the thinner and lighter the fabric. 30s is lighter than 17s or 20s.
What colors are available?
You can mix all 18 colors within one order.White and light colors can be slightly see-through, so for event group T-shirts we recommend darker colors.
Actual colors may look slightly different depending on your screen.
How does it look on?
The thin, light 30s 140g/㎡ fabric stays cool even at outdoor events in midsummer.
Navy
Model 182 cm, wearing L
White
Model 164 cm, wearing L
Front print
Dark colors too18 colors
Back print
Print areaUp to 28 × 32 cm
Left chest logo
Same shirt, back
AI-generated modelAll printed shirts shown are real orders, featured with client consent.
What printing methods are available?
We offer two printing methods: heat transfer and screen printing.The choice depends on the number of colors in your logo and the order quantity.
The design is printed on film and pressed on with heat and pressure.
A screen is made for each color, and ink is pushed through it onto the fabric.
We choose the right printing method together after a consultation.
Beyond printing
Your logo can also go on as embroidery · a woven label · a patch.
Your quote may vary with the method and complexity, confirmed after a consultation.
Where can it be printed?
Both front and back can be printed. Other positions such as sleeves and back neck are available on request.The standard print area is 28 cm wide × 32 cm tall, starting 5 cm below the front or back neck point, based on a real size L order.
By default, both front and back can be printed up to 28 cm wide × 32 cm tall, and other positions are also possible.Based on a real size L order.
Do you offer packaging?
By default, each piece is individually packed in an OPP poly bag and shipped in an O-SEAN box.Other packaging can be planned and designed separately.
- Custom packaging planning and design are charged separately
What sizes are available?
Six sizes from S to 3XL.Sizes run from S(85) to 3XL(110). Flat measurements for body length, chest width, shoulder width and sleeve length are in the table below.Measurements may vary by ±1–2 cm depending on how they are taken.
| Size | Length (A) | Chest (B) | Shoulder (C) | Sleeve (D) |
|---|---|---|---|---|
| S (85) | 63 | 47.5 | 40 | 19 |
| M (90) | 66 | 50 | 42 | 20.5 |
| L (95) | 69 | 52.5 | 44 | 21.5 |
| XL (100) | 72 | 55 | 46 | 22.5 |
| 2XL (105) | 75 | 57.5 | 48 | 23.5 |
| 3XL (110) | 78 | 60 | 50 | 24.5 |
Measurements may vary by up to ±1–2 cm due to the product and how it is measured.
How does price change with quantity?
We make from 1 piece, and the price per piece drops as quantity grows.It goes from KRW 8,800 for 1 piece to KRW 6,100 at 100 pieces and KRW 4,400 at 1,000 pieces. All prices exclude VAT.
| Quantity | Per piece |
|---|---|
| 1 pc | KRW 8,800 |
| 50 pcs | KRW 7,900 |
| 100 pcs | KRW 6,100 |
| 500 pcs | KRW 5,200 |
| 1,000 pcs | KRW 4,400 |
All prices exclude VAT. Prices may vary with print position, number of colors and options.
Request a quoteProduct information
- Product name
- Custom group short-sleeve T-shirt, 30s
- Material
- 100% cotton
- Yarn
- 30s
- Fabric weight
- 140g/㎡
- Knit
- Single jersey
- Colors
- 18 colors (White · Black · Gray · Charcoal · Navy · Royal blue · Blue · Sky blue · Light blue · Purple · Red · Burgundy · Hot pink · Light pink · Orange · Yellow · Lime · Green)
- Sizes
- S(85) · M(90) · L(95) · XL(100) · 2XL(105) · 3XL(110)
Care instructions
- Machine wash at about 30℃Gentle cycle, mild detergent
- Do not bleachAvoid oxygen bleach too
- Do not ironEspecially not on the print
- Do not dry cleanWater wash only
- Do not tumble dryTurn inside out and dry in the shade
Care symbols are defined in the international textile care labeling standard ISO 3758.
Notes
- Do not use the product for anything other than its intended purpose.
- Keep the product away from high heat and open flames.
- Items confirmed to be damaged or defective in transit will be replaced with new ones.
- Minor lint or slight color variation can occur in production and is not grounds for exchange.
- Actual colors may look slightly different depending on your screen.
Labeling and safety standards for household textiles are explained in the KATS (Korean Agency for Technology and Standards) safety standard compliance guide for household textiles.
Frequently asked questions
Can I order just 1 piece first?
Yes, we make from 1 piece. Before placing the group order, the safest approach is to get samples for two or three people with typical body types and check the size, fabric and print. Add the sample turnaround time to your schedule and leave some buffer.
How can I lower the price per piece?
Combining quantity into one order makes the biggest difference. As the price table above shows, it goes from KRW 8,800 for 1 piece to KRW 6,100 at 100 pieces and KRW 4,400 at 1,000 pieces. Mixed sizes and colors still count as one order, and fewer print positions and colors lower the cost further.
How does the fabric feel, and how thick is it?
It is 100% cotton 30s single jersey at 140g/㎡, on the soft and light side. If you want a thick, sturdy feel, this is not the right fit, and we can point you to our 20s or 14s products. To feel it before deciding, order 1 piece first.
Is it good for summer? Is white see-through?
It is a thin fabric made for summer events. 30s is lighter and more breathable than 20s (170g/㎡) or 17s (190g/㎡). White and light colors can be slightly see-through, so for event group T-shirts we recommend dark colors like navy or charcoal. See the fabric comparison table above for thickness and sheerness by count.
When should I order to receive it in time for my event?
We deliver 2 weeks after design proof approval, so approve your proof at least 2 weeks before the event. Allowing time for proof revisions and checking the delivery, contacting us about a month ahead is comfortable. Tell us your event date when you order, and your consultant will check the schedule against it.
What printing methods do you use, and how do I choose?
We use two methods: heat transfer and screen printing. Heat transfer, where film is pressed on with heat, suits logos with many colors or small quantities. Screen printing, with one screen per color, suits fewer colors and larger quantities. Front and back can each be printed up to 28 cm wide × 32 cm tall (size L), and for a longer-lasting logo you can also choose embroidery, a woven label or a patch.
Will the print peel or crack in the wash?
Follow the care instructions and it will last. Wash inside out on a gentle cycle at about 30℃ with mild detergent, and avoid ironing and tumble drying. Heat transfer prints are less wash-resistant than screen prints, so it helps to pass the care instructions along when you hand the shirts out.
How do I choose a size?
Go by the numbers in the measurement table above rather than the size name. Lay a short-sleeve tee that fits you well flat, measure the width just below the armpits and the body length, then pick the row closest to chest (B) and length (A). In the photos, the 182 cm model wears L and the 166 cm model wears M. Measurements may vary by ±1–2 cm depending on how they are taken.
How do I collect sizes for my team, and how many spares should I order?
Send us a table of headcount per size, and we make mixed sizes and colors as one order. Your consultant inspects every piece before shipping to catch defects, but if the shirts are for handing out at an event, it is safer to add a few extras in the most common sizes for on-site exchanges.
It is my first order. Can I start with just a logo file?
Yes, a logo file is enough to start. Of the five items (quantity, colors, headcount per size, logo file and print position), anything still open is decided with your consultant while reviewing the design proof. Send an inquiry and we reply within 4 hours.
Tell us what kind of merch
you need, however you like
A dedicated consultant supports you all the way through. We reply to quote requests within 4 hours on average.