After being hinted at by Union owner Chris Gibbs, the Los Angeles streetwear pioneers are continuing to tease an Air Jordan 4 project.

The latest teaser includes an image of designer Tinker Hatfield's original Air Jordan 4 sketch from 1988, which is possibly indicative of the direction Union will head with its collaboration. Key differences between this sketch and the retail version of the Air Jordan 4 include a zebra-embossed durabuck overlay and the extension of breathable mesh across the full length of the tongue.

At this time, there's still no release details for the Union x Air Jordan 4, but it looks like the collab can be considered a lock at this point.

UPDATE (08/06): After months of speculation, Union Los Angeles has unveiled its latest collaboration with Jordan Brand.

Union's Chris Gibbs also shares the design process behind his "Off Noir" and "Guava" Air Jordan 4s stating that growing up, he would fold the tongues on his 4s, a detail which is replicated on the upcoming pairs, but the stitching can also easily be removed based on the wearer's preference.

An extra panel has also been added to the upper's overlays to allow a better balance in the upper's mesh to suede ratio. Meanwhile, the vintage-looking yellowed soles are a call back to the store's Air Jordan 1 collaboration from 2018.

Also releasing alongside the aforementioned Air Jordan 4s are the Air Jordan Delta Mid "Off Noir" and the Air Jordan Zoom '92 "Guava," all scheduled to release on Aug. 29 at Unionjordanla.com.

Union x Air Jordan 4 Retro 'Off Noir' DC9533-001 Lateral
Image via Union Los Angeles
Union Air Jordan 4 Retro 'Off Noir' DC9533-001 Lateral
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Off Noir' DC9533-001 Front
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Off Noir' DC9533-001 Heel
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Guava Ice' DC9533-800 Pair
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Guava Ice' DC9533-800 Lateral
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Guava Ice' DC9533-800 Lateral
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Guava Ice' DC9533-800 Front
Image via Union Los Angeles
Union x Air Jordan 4 Retro 'Guava Ice' DC9533-800 Heel
Image via Union Los Angeles
Union x Air Jordan Delta Mid 'Off Noir' Pair
Image via Union Los Angeles
Union x Air Jordan Delta Mid 'Off Noir' Lateral
Image via Union Los Angeles
Union x Air Jordan Delta Mid 'Off Noir' Medial
Image via Union Los Angeles
Union x Air Jordan Delta Mid 'Off Noir' Heel
Image via Union Los Angeles
Union x Air Jordan Zoom '92 'Guava' Pair
Image via Union Los Angeles
Union x Air Jordan Zoom '92 'Guava' Lateral
Image via Union Los Angeles
Union x Air Jordan Zoom '92 'Guava' Medial
Image via Union Los Angeles
Union x Air Jordan Zoom '92 'Guava' Heel
Image via Union Los Angeles