Leatherworking 300 - 375

300-310
Knothide Leather (5 x Knothide Leather Scraps) x 20 = 100 x Knothide Leather Scraps
N.B. make as many as it takes to get to 310. Your going to need around 725 Knothide leather, so you may as well get the skill up points for this.

310-320
Wild Draenish Gloves (9 x Knothide Leather, 3 x Rune Thread) x 10

320-325
Thick Draenic Boots (10 x Knothide Leather, 3 x Rune Thread) x 5

325-335
Heavy Knothide Leather (5 x Knothide Leather) x 80
Your going to need 80 later on, so get the skill up points for making it.

335-340
Thick Draenic Vest (14 x Knothide Leather, 3 x Rune Thread) x 5

340-355
Felscale Breastplate (14 x Knothide Leather, 3 x Fel Scales, 3 x Rune Thread) x 15

355-365
You need to be Friendly with Cenarion Expedition for the next part:
Heavy Clefthoof Boots (4 x Heavy Knothide Leather, 20 x Thick Clefthoof Leather, 4 x Primal Earth, 2 x Rune Thread) x 10

365-370
Felstalker Bracers (6 x Heavy Knothide Leather, 6 x Fel Hide, 6 x Crystal Infused Leather, 4 x Primal Air, 2 x Rune Thread) x 5
Requires Thrallmar/Honor Hold honoured rep to buy pattern

Alternatively, if your exalted with The Sha''tar:
Drums of Battle (2 Heavy Knothide Leather, 1 x Primal Fire, 1 Primal Earth) x 5

Either of the above will take you to 375, but you may end up having to make quite a few. So in the meantime, work on your Keepers of Time rep and do the following:

370-375
Drums of Panic (2 x Heavy Knothide Leather, 2 x Primal Shadow) x 5

Approximate Materials Required

100 x Knothide Leather Scraps
380 x Knothide Leather
80 x Heavy Knothide Leather (that''s 400 x Knothide Leather!)
135 x Rune Thread
30 x Fel Hide
30 x Crystal Infused Leather
45 x Fel Scales
200 x Thick Clefthoof Leather
20 x Primal Air
40 x Primal Earth
10 x Primal Shadow