Travistello.
Official Sea to Summit Ultra-Sil Dry Bag 3L in Spicy Orange, closed roll-top exterior
Sea to Summit, official product photography. Used for product identification and editorial analysis.

Sea to Summit · 3L; height20.7cm with top rolled3times, oval base14x17.1cm

Sea to Summit Ultra-Sil Dry Bag 3L

A 30 g, 3L internal-packing sack with30D Ultra-Sil CORDURA nylon, taped seams and a roll-top. Selected Spicy Orange US offer observed USD22.95; external rugged use is outside its stated role.

7.5/10 research score

Best for A defined small internal packing group inside a backpack or duffle

Read the verdict

Research-based assessmentOfficial specifications and documented evidence. Not hands-on tested. Research score only. Not a Travistello Pick.

Weight
0.03 kg
Capacity
3 L
Score
7.5/10

The short answer

Best for a defined small internal packing group inside a backpack or duffle.

A very light internal organizer for travelers who protect it inside a larger bag and verify the actual contents fit. The30g specification is useful when weight matters. Its featherweight fabric and explicitly restricted external role deserve as much attention as its water-resistant construction.

Why it stands out

  • Published30g weight and complete rolled dimensions
  • Semi-translucent fabric helps identify packed contents
  • Taped seams and replaceable15mm buckle specified

Know before buying

  • Research-based evaluation; outward leakage, wet-kit fit, durability and closure performance are untested
  • Manufacturer says not suitable for paddle sports and recommends stronger fabrics for general external use
  • 2000mm fabric claim is not proof of complete-bag submersion or leakproofness
  • Three-liter label does not guarantee towel fit; closed storage does not dry the contents
  • US USD observation and defect warranty do not establish contents protection or international eligibility

Travistello research score

7.5/ 10

Why it earned this score.

Research-based, using Travel Essentials Research Model v1.0. No physical test is implied.

01

Travel function

7.2

Internal organization is explicit; limited external role and untested outward leakage constrain versatility.

30% of overall score
02

Materials and care

6.8

30D nylon/taped seams/buckle specified, with explicit abrasion and paddle-sport limits.

20% of overall score
03

Packed portability

9.2

Published30g for3L is15g below the70D alternative; exact kit fit still matters.

20% of overall score
04

Value and ownership

7.4

USD22.95 US observation buys lower empty weight, with conditional defect coverage and contents exclusions.

15% of overall score
05

Organization and fit

7.2

Semi-translucent single compartment and rolled dimensions support checking a defined small group.

15% of overall score

Normalized specifications

The facts, in comparable form.

Variant: 3L / Spicy Orange · SKU A4241-23

Weight0.03 kg
Capacity3 L
External dimensionsHeight20.7cm with top rolled3times; oval base14x17.1cm, not a rectangular usable-volume claim
Intended useLight internal organization inside a backpack or duffle; manufacturer excludes paddle sports and recommends stronger fabric for external use
OrganizationOne semi-translucent compartment with oval base; no internal divider stated
Closure systemNon-wicking hypalon roll-top with15mm Field Repair Buckle and taped seams
Published materials30D Ultra-Sil nylon with CORDURA yarns; sack100%nylon, buckles100%POM; non-PFAS DWR
Warranty termsLimited lifetime warranty for manufacturing material/workmanship defects during the intended product life under normal use, for the original owner with authorized-purchase proof. Misuse/care, accident, negligence, normal wear and age/environmental degradation excluded. Repair, replacement or credit; damage to other contents is not covered. Regional conditions apply.
Regional availabilitySelected3L Spicy Orange available on US USD storefront19October2026Warsaw; international eligibility must be checked
Observed official priceUSD22.95,selected3L Spicy Orange,19October2026Warsaw

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Evidence & methodology

What we know, and what we do not.

A 0 to 10 research model for compact travel essentials and organizers. Travel function (30%), packed portability (20%), organization and fit (15%), materials and care (20%), and value and ownership (15%) are scored only from official published information. Manufacturer statements about waterproofing, leak resistance, protection, and durability remain attributed claims until Travistello tests them. Regional sales limits and conditional warranties lower the ownership score when they materially restrict who can buy or claim coverage.

EvaluationResearch-based
Reviewed18 October 2026
Physical testNot yet conducted

Primary evidence

Commercial disclosure. Official non-affiliate link to Sea to Summit US. No commission is earned through this link. Price and selected-variant availability were observed on 19 October 2026; regional offers differ.

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Official offerUS$22.95
View official product page ↗