Can't craft anything in tailoring
You have to be skill level 75 to make these. You’re not quite there, yet.
Red text means you have not leveled up the Crafting Discipline high enough yet.
You can read about the different colors shown in the Crafting tab in the Wiki using the link above.
Good luck.
I would highly recommend using a guide to level crafting. It’ll keep you from wasting gold, and it’ll keep you from hitting roadblocks like this. As the others have already said, you’re simply not at the level of crafting for refining that leather.
Check out the guides on gw2crafts.net.
The different colors on the menu on the left have to do with how much exp you get for crafting and whether or not you can craft that item.
Gold: you can craft. You’ll get max exp.
Green: less exp than gold
White: can craft but you’ll get no more exp from crafting.
Red: that item is not yet within your crafting range.
ANet may give it to you.
(edited by Just a flesh wound.3589)