Moonlight Crossbody Bag

The Topo Designs Moonlight Crossbody Bag is a 4 L (245 cu in), 0.35 lb sling bag with water-resistant fabric.

Capacity: 4 L (245 cu in)
Weight: 0.4 lb · 159 g
Carry: Crossbody
Water: Water-resistant

Review score

From 1 review, weighted by each site’s popularity

8.2/ 10

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Read the reviews: Pack Hacker review (opens in new tab) (Jun 25, 2026). Each site’s scale is converted to our 1–10 scale and averaged; more-visited sites count more (how).

What the data says

Lighter than 98% of the 46 other slings we list in the 2–6 L range.

Computed from the specs below. How we write summaries.

Full specs

Last verified Oct 5, 2026

Unless marked otherwise, specs are from the manufacturer’s product page (topodesigns.com).

Size & carry
Capacity	4 L (245 cu in)
Weight (manufacturer)	0.35 lb (159 g)
Dimensions	16.5 × 31.8 × 8.3 cm (6.5 × 12.5 × 3.3 in)
Carry	Crossbody

Build
Main fabric	200D 100% recycled nylon lightweight ripstop, PFC-free DWR
Fabric denier	200D
Water resistance	Water-resistant

Features
Key leash	Yes
MOLLE/webbing	Yes

Other
Colors	Bone White / Super Sonic, Black / Neutral, Bone White / Beetle, Mustard / Forest, Black / White Grid, River Blue / Cobblestone, Very Peri / Forest
Warranty	MAP Guarantee™ (guarantees everything they make)