Replacement Round Stay (M) - Vertical - 21.5"

Name: Replacement Round Stay (M) - Vertical - 21.5"
Brand: Zpacks
SKU: 435
Price: 6.27 USD
Availability: InStock
Rating: 4.4 (5 reviews)

Replacement Round Stay (M) - Vertical - 21.5" - Main image

$6.27 ~~$9.95~~ In stock

Category: Materials Hardware

These replacement round vertical stays fit our

discontinued

Arc Blast

Arc Zip

Arc Haul

, and

Arc Haul Zip

Backpacks.

If you prefer our original adjustable Arc stay system, these can be retrofitted into any of our new

Arc Haul Ultra

backpacks. You may need to trim down the length with a hacksaw to get the right fit.

Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Evelyn T. ★★★★★ Oct 22, 2026

Installed these into my older pack and the vertical stay system locked together perfectly—no wobble. The 21.5" length was spot-on for the frame channel.

Amelia R. ★★★★★ Oct 20, 2026

Finally found these vertical stays as a replacement for my old pack and they fit the sleeve perfectly. The 21.5" length is exactly what I needed to restore the original frame support.

Michael ★★★★★ Oct 19, 2026

I was relieved to find these 21.5" round stays as a direct replacement for my old backpack frame; they slid right into the sleeve without any modification. The vertical design feels much more stable than the original setup I had.