dash (spire usa) or mitre (tom bihn) sleeve?

So I've got it narrowed down to two sleeves for my 15" al.- I want a sleeve for protection in other bags (I have a yakpack messenger bag and the incase sling pack) has anyone had experience with either sleeve?

The unfortunate thing is that right now the spire dash is listed as unavailable-does anyone know if there is another place besides spireusa.com to buy them? I want to make sure that these are good sleeves before I purchase yet another accessory for my laptop....

tom bihn mitre

spire usa dash

well- nevermind I guess- the spire usa dash has been discontinued- that's why it's unavailable.....I'll go with the t. bihn- unless anyone has any other suggestions??