Cost to buy?
The Accessory Crate is only purchasable from December 14 - 17th if players paid $4.99 USD to get it. After December 17th, the crate gets discontinued and you're unable to buy it.
When opened, players were rewarded with the Accessory Crate which contains;
|Green Pattern Cap||Hat|
|Green Pattern Fingerless Gloves||Gloves|
Q: Where can I buy this crate/pack? | A: Here, https://www.microsoft.com/en-us/store/p/playerunknowns-battlegrounds-accessory-pack/bqgcdrd88hx5 but your unable to buy it anymore.
The full Accessory outfit