Peak Design Outdoor Rain Fly for Backpack, Fits 25-30L Bags, Waterproof Cover for Hiking or Travel, Terra Shell Ripstop Nylon, Stuff Sack Included, Backpack Rain Cover

Price: $29.95
(as of Oct 07, 2026 14:46:25 UTC – Details)

Product description

Peak Design Outdoor Rain Fly

When your backpack needs total protection from the elements, look no further than the ultra-packable waterproof Outdoor Rain Fly.

Key Features Weatherproof Terra Shell

Protects your bag from severe/prolonged rain, snow, and elements.

Adjustable Cinch

Cinchable elastic perimeter cord ensures cover fits snugly.

Sturdy & Sustainable

Thoughtful Design

We seek to make the ‘best things,’ products that are well-made, durable, and thoughtfully designed. As a B Corp and a co-founder of the organization Change Climate, we commit 1% of profits to environmental nonprofits and focus on transparency, community engagement, and sustainable practices.

A Backpack for Every Journey

The PD Outdoor Backpack 45L & 25L incorporates a ton of innovative features that just work, so you can spend more time enjoying the outdoors and less time wrestling with your gear. Designed to work with Peak Design’s wide array of Packing Tools.

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Customer Reviews

4.4 out of 5 stars 350

4.5 out of 5 stars 42

4.4 out of 5 stars 350

3.7 out of 5 stars 28

3.4 out of 5 stars 15

4.7 out of 5 stars 42

4.8 out of 5 stars 48

Price

$99.95$99.95

$49.95$49.95

$59.95$59.95

$249.95$249.95

$329.95$329.95

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$49.95$49.95

Capacity

7.5L

7L

2L

25L

45L

0.8L – 10L

1L – 12L

Weight

335g (0.74lbs)

220g (0.48lbs)

177g (0.39lbs)

1.15kg (2.54lbs)

1.8kg (3.97lbs)

20g to 44g

31g to 77g

Dimension

35cm x 22cm x 11cm

12cm x 23cm x 15cm

28cm x 15cm x 7cm

48.5cm x 28cm x 15cm

48.5cm x 28cm x 15cm

30cm x 17cm x 13cm

30cm x 17cm x 13cm Expandable

Weatherproof

Yes

Yes

Yes

Yes

Yes

Yes

No

PFAS-Free

Yes

No

Yes

Yes

Yes

Yes

Yes

Peak Design Outdoor Rain Fly Materials and Technical Specifications

Dimensions 18.5cm x 15cm (packed) | 66cm x 25cm x 18cm (deployed) Weight 91.7g (0.2 lbs) Materials Waterproof Terra Shell 50D recycled 2×6 twin rip nylon with a 2,000mm hydrostatic coating , Stretch mesh stuff pocket Materials Durable #5 zipper, Elastic shock cord with thermoplastic cinch hardware, and PFAS-free

OUTDOOR RAIN FLY: Built for downpours and rugged conditions, the Outdoor Rain Fly is a waterproof backpack rain cover designed to protect your gear from rain, snow, and the unexpected, wherever the trail takes you.
FULL COVERAGE, WEATHERPROOF DESIGN: Made from 100% recycled Terra Shell 50D ripstop nylon with a 2,000mm hydrostatic coating and fully taped seams, this rain fly keeps water out even in extreme conditions.
SECURE FIT AND DRAINAGE: A cinchable elastic cord ensures a snug fit over your hiking backpack. Laser-cut drainage holes at the bottom release trapped moisture, preventing pooling inside the backpack cover.
PACKABLE AND VERSATILE: Stuffs down into a breathable mesh pouch with zipper closure and hanging loop for quick drying. Ideal for air travel or wet treks. Available in two sizes: fits 25-30L or 45L backpacks.
RADICAL PRODUCTS, RADICAL COMPANY: Peak Design creates industry-shifting, lifetime-lasting gear with a mission to leave the world better than we found it. No investors, no venture capital – just innovation on our terms.