Fabric heavier than 280 grams. Standard weight in the industry is 230 grams or lighter.
Gildan 5400 - Heavyweight Cotton L/S
Jerzees 29M - Heavyweight Blend T-Shirt
Gildan 5000B - Heavyweight Cotton Youth T-Shirt
Next Level 4600 - Unisex Eco Heavyweight T-Shirt
Harriton M712 - Unisex ClimaBloc Heavyweight Quarter-Zip
Comfort Colors C1717 - Adult Heavyweight T-Shirt
Harriton M711 - Men's ClimaBloc Lined Heavyweight Hooded Sweatshirt
Comfort Colors 6030CC - Adult Heavyweight Pocket T-Shirt