4Monster Water Resistant Packable Hiking Daypack
- Storage Volume: 0.6 cu ft
- Size: 0.6 cu ft
- Item Weight: 0.13 pounds
- Strap Type: Shoulder Strap
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A featherweight packable backup bag that folds down small enough for a pocket, best kept for day trips rather than serious hiking loads.
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ASIN: B07C3KNS5CCategory: Hiking Daypacks
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Overview
4Monster's packable daypack weighs about 4 ounces and folds into a wallet-sized pouch, built from water-resistant 30D nylon for hiking, travel and use as a backup bag.
It's built as a spare bag more than a primary hiking pack: a main compartment, a front zipper pocket and two mesh side pockets cover basic organization for snacks, a water bottle and light layers. The 30D nylon is described as tear-resistant with reinforced stitching, and the water-resistant coating is meant for light rain and splashes rather than sustained downpours.
- About 4 oz / 113g packed weight
- Folds into a wallet-sized pouch
- Water-resistant 30D nylon with reinforced stitching
- Main compartment plus front zip and two mesh side pockets
Who it's for
Hikers and travelers who want a near-weightless spare bag to keep folded in a pocket or suitcase for day trips; not suited to heavy loads or wet climates.
Pros and cons
- Folds into a compact, pocket-sized pouch
- Weighs about 4 ounces
- Separate main compartment, front zip pocket and two mesh side pockets
- Water-resistant only, not built for sustained rain
- Thin 30D fabric suits light use, not heavy loads
Performance notes
The thin 30D nylon keeps the pack near-weightless while reinforced stitching adds some tear resistance for everyday snags. Water resistance covers light rain and splashes, and the whole pack folds back into its own small pouch when not in use.
Specifications
| Brand | 4Monster |
|---|---|
| Dimensions & fit | |
| Size | 0.6 cu ft |
| Item Weight | 0.13 pounds |
| Apparel Fabric Weight Class | Lightweight |
| Fit to Size Sentiment | Neutral |
| Item Dimensions D x W x H | 7.1 × 11.8 × 18.5 inches |
| Capacity & performance | |
| Storage Volume | 0.6 cu ft |
| Age Range Description | Adult |
| Construction & materials | |
| Outer Material | Faux Leather |
| Material Type | Nylon |
| Apparel Fabric Stretch | No Stretch |
| Color | Blue |
| Shell Type | Soft Shell |
| Included components | |
| Backpack Design | Daypack Backpack |
| Unit Count | 1 |
| Other details | |
| Strap Type | Shoulder Strap |
| Water Resistance Level | Water Resistant |
| Fit Type | Standard |
| Number of Compartments | 3 |
| Number Of Pockets | 4 |
| Pocket Description | Keys Pocket, Side Water Bottle Pocket |
| Apparel Closure Type | Drawstring, Zipper |
| Lining Description | Nylon |
| School Type | High School |
| Sport Type | Hiking |
| Number of Items | 1 |
| Import Designation | Imported |
| Pattern | Solid |
| Product Style | Camping & Travel |
| Product Care Instructions | Wipe With Damp Cloth |
| Recommended Uses For Product | Gym, Sport, Travel |
| Style Number | BP-40D |
| Subject Character | Sports |
| Embellishment Feature | Cord |
| Theme | Outdoor Adventure |
| Item Type Name | Hiking Daypack |
Closest rivals on specs
SUIKIHUM Ultra Lightweight Foldable Hiking Daypack- Item Weight 0.13 vs 0.16 pounds (-19%)
- Storage Volume 0.6 vs 0.7 cu ft (-14%)
Osprey Ultralight Collapsible Stuff Pack- Item Weight 0.13 vs 0.33 pounds (-61%)
UtiaMiaoGonGo Packable Foldable Hiking Daypack 15L- Size 0.6 vs 0.5 cu ft (+20%)
- Storage Volume 0.6 vs 0.5 cu ft (+20%)
Frequently asked questions
How much does the 4Monster daypack weigh?
About 4 ounces (113 grams).
Is it waterproof?
No, it's water-resistant, meant for light rain and splashes rather than sustained wet weather.
How does it pack down for travel?
It folds into its own compact, wallet-sized pouch that fits in a pocket or suitcase.