Elastic Days is the third solo studio album by Dinosaur Jr. frontman J Mascis.

[3] The album was recorded at Mascis' Bisquiteen Studio in Amherst, Massachusetts, and features vocal contributions by Pall Jenkins, Mark Mulcahy and Zoë Randell.

[8] In support of the album, Mascis went on a North American tour, starting on November 7, 2018 in Vancouver, British Columbia and finished on December 15, 2018 in Portland, Maine.

[10] Aggregator Album of the Year gave the release a 75 out of 100 based on a critical consensus of 21 reviews.

[21] Mark Deming from AllMusic explained that Mascis' vocals on the album sound "more lucid, better focused and more conscious of what he has to say; the performances have a depth of feeling he doesn't always reveal in Dinosaur Jr.."[11] All tracks are written by J MascisMusicians