Does this work with other backpack brands?

No. The snap attachment is designed exclusively for the Gossamer Gear Mariposa 60, Gorilla 50, and G4-20 models. It will not fit packs from other manufacturers or older Gossamer Gear designs.

Can I leave the jacket on my pack all the time?

Yes. The snap attachment holds the jacket in place securely, so you can leave it on for entire trips without removing it for breaks or camp stops. It adds minimal bulk when not needed and is ready when weather turns.

How does this compare to a standard pack rain cover?

Traditional rain covers are loose shells you pull over your pack and cinch with elastic or drawcords. This jacket snaps directly onto compatible Gossamer Gear packs and stays attached, so there's no deployment step when rain starts. The silicone-coated ripstop also resists abrasion better than typical rain cover fabrics.

Is the jacket waterproof or just water-resistant?

The silicone coating on the outer face sheds water effectively by causing it to bead and run off rather than soak into the fabric. The UTS backing adds durability. It's designed to keep your pack and contents dry in rain and wet conditions.

Pack Jacket

silicone
Recycled materials

The 3-second version

Snaps directly onto Mariposa 60, Gorilla 50, or G4-20 packs
20D recycled nylon ripstop with silicone face and UTS backing
Stays attached through the trip—no deployment every storm
Only fits Mariposa 60, Gorilla 50, or G4-20 packs
Not adaptable to other brands or models

Why it's on GiftsFeed

Weatherproof cover that snaps onto Gossamer Gear backpacks

Most pack covers are loose nylon shells you yank from a stuff sack, wrestle over your load, and cinch tight every time weather threatens. They slip, they snag, and they live in your pack unused because deploying them mid-hike feels like more effort than the drizzle warrants. This jacket snaps into place once and stays there, so when rain starts you're already protected. The silicone-coated ripstop also handles abrasion better than typical packcloth, which matters if you bushwhack or lean your pack against granite regularly. It's worth it if you own a compatible Gossamer Gear pack and hike often enough that waterproofing should be automatic, not optional.

Good gift when

Owners of Gossamer Gear Mariposa, Gorilla, or G4-20 packs
Hikers who encounter frequent rain or dense vegetation
People who want pack protection without repeated setup
Ultralight backpackers adding weatherproofing without bulk

Skip it if Only fits three specific Gossamer Gear pack models—Mariposa 60, Gorilla 50, and G4-20. If you own a different brand or an older Gossamer Gear design, this jacket will not attach.

Specs

Material: 20D recycled nylon mini ripstop
Coating: Silicone face, UTS backing
Attachment: Snap-on
Compatible packs: Gossamer Gear Mariposa 60, Gorilla 50, G4-20

What's included

Pack Jacket

If you're giving it

No sizing to guess

Buyer must verify recipient owns a compatible Gossamer Gear pack model.

The details

This is a snap-on rain and abrasion shield designed specifically for three Gossamer Gear backpack models: the Mariposa 60, Gorilla 50, and G4-20. Instead of fumbling with drawcords or elastic hems in a downpour, you attach it once using snaps, and the jacket stays in place for the duration of your trip.

The shell is 20-denier recycled nylon ripstop with a silicone treatment on the outer face and a UTS backing on the inside. That dual-layer construction handles both water shedding and the kind of brush, rock scrapes, and pack-against-tree moments that wear through thinner fabrics. The silicone face beads water rather than soaking it up, and the ripstop grid resists tearing if a branch catches the cloth.

Because it attaches with snaps instead of wrapping or cinching, you can leave the jacket on your pack for weeks at a time without removing it for camp stops or breaks. When weather turns, you're already covered. When it doesn't, the jacket adds minimal bulk and weight to your load.

This accessory fits only the three named Gossamer Gear pack models. It will not adapt to other brands or to older Gossamer Gear designs. If you own one of the compatible packs and regularly hike in wet or brushy conditions, the jacket extends the working life of your pack and keeps your gear dry without the ritual of deploying and stowing a separate cover every time clouds roll in.

Gossamer Gear

Pack Jacket

Silicone-coated ripstop shield for Mariposa 60, Gorilla 50, and G4-20 packs

$55at gossamergear.com

Quantity

Buy from Gossamer Gear

Ships and sold by Gossamer Gear. About this merchant

The 3-second version

Snaps directly onto Mariposa 60, Gorilla 50, or G4-20 packs
20D recycled nylon ripstop with silicone face and UTS backing
Stays attached through the trip—no deployment every storm
Only fits Mariposa 60, Gorilla 50, or G4-20 packs
Not adaptable to other brands or models

Questions

Does this work with other backpack brands?: No. The snap attachment is designed exclusively for the Gossamer Gear Mariposa 60, Gorilla 50, and G4-20 models. It will not fit packs from other manufacturers or older Gossamer Gear designs.
Can I leave the jacket on my pack all the time?: Yes. The snap attachment holds the jacket in place securely, so you can leave it on for entire trips without removing it for breaks or camp stops. It adds minimal bulk when not needed and is ready when weather turns.
How does this compare to a standard pack rain cover?: Traditional rain covers are loose shells you pull over your pack and cinch with elastic or drawcords. This jacket snaps directly onto compatible Gossamer Gear packs and stays attached, so there's no deployment step when rain starts. The silicone-coated ripstop also resists abrasion better than typical rain cover fabrics.
Is the jacket waterproof or just water-resistant?: The silicone coating on the outer face sheds water effectively by causing it to bead and run off rather than soak into the fabric. The UTS backing adds durability. It's designed to keep your pack and contents dry in rain and wet conditions.