Originally Posted by Peter_pan
Looking at those pictures both the XL sleeves, and vest are too small for you... Sizing is especially important for down products to ensure they function at normal loft.
Jacks R Better has a 100% satisfaction guareantee... Please send the sleeves back for a full refund.
FWIW, some minor opening under the arm pits (pit venting) is normal and even some back opening at full rotation of the arms to a forward position is normal... But your photos show fit problems beyond the normal range.
The loft on them is actually really great... much more loft than I had expected. I'll get them in the mail back to you tonight.
Nevertheless - I wholeheartedly endorse this product... for those that they fit (just about everyone but me lol). They are AWESOME.