Sea to Summit Wilderness Wash (50 ml / 100 ml)

Published · Researched 2026-09-21

2026 lineup note: The family is mid-transition. Older 40 ml / 89 ml / 250 ml bottles are giving way to current 50 ml and 100 ml sizes with refreshed "TSA carry-on compliant" labeling (verified visually on a 100 ml bottle in this pass). Exact current US SKUs and per-size MSRP are UNVERIFIED. Comparison uses the 100 ml bottle.

Version lineage (2023–2026)

Older listings show 40 ml, 89 ml (older SKU SU/AWW89/9999/9999), and 250 ml bottles. Current evidence (2026): a 50 ml bottle listed by Mountain Chalet, a 100 ml bottle with new white/blue TSA-labeled packaging (image-verified), and an Australian 100 ml listing with EAN 9327868147335. The exact year the sizes/labels changed is UNVERIFIED — reported as observed, not reconstructed.

Overview

A concentrated, multipurpose outdoor soap for body, shampoo, dishes, laundry, and gear. Current retailer listings describe it as biodegradable, phosphate-free, and pH neutral (Public Lands). It is a concentrate: a few drops suffice, which is why the bottles are small. Wilderness Wash is also bundled in REI's camp cleanup kit as a refillable 50 ml bottle.

Key Specs

Pricing

• $7.95 — Public Lands, observed 2026-09-20 (the page did not expose which size this price applies to — caveat; live re-verify)
• $6.95 (50 ml) — Mountain Chalet, observed 2026-09-20, out of stock (stale availability)
• Sea to Summit Canada: $7.95–$12.95 range across sizes, observed 2026-09-20
• Australia: $6.99–$14.99 AUD, observed 2026-09-20
• Current US per-size MSRP and street prices UNVERIFIED. Live re-verification advised before purchase.

In the Box

Single bottle. UNVERIFIED whether multi-packs or other current bundle configurations exist.

Warranty

Sea to Summit's lifetime material/workmanship guarantee applies in principle (see Pocket Towel file), but whether a consumable soap is meaningfully covered after opening/use is UNVERIFIED — treat the warranty as effectively not applicable to used product.

Support & Parts

Standard Sea to Summit support via seatosummit.com. No parts applicable. Response-time claims are UNVERIFIED.

Community Verdict

Grounded in actual discussions, no fabricated scores:

• Powder's biodegradable-soap roundup calls Wilderness Wash a useful jack-of-all-trades and gentler on skin than Campsuds.
• In hiking/backpacking forums, Dr. Bronner's is the more ubiquitous community pick — cheaper, available everywhere, similarly concentrated — while Wilderness Wash is favored by travelers who want the small TSA-friendly bottle.
• Environmental sources (e.g., SectionHiker's piece on biodegradable soap) stress that all soaps, including biodegradable ones, harm aquatic life — "biodegradable" is not a license to wash in a lake or stream.

Leave No Trace realities: Carry water at least 200 ft (about 60 m) away from lakes, streams, and springs before washing (US LNT guidance; some STS/overseas guidance says 100 m). Use very little soap, broadcast and disperse strained wastewater widely, and follow local rules for gray-water disposal. Never wash directly in a waterway.

Community Verdict — appended voices (Sept 2026)

• powder.com head-to-head (Sept 2026): Campsuds "annihilates grease"; Wilderness Wash is the gentler "jack-of-all-trades"; Dr. Bronner's is "most widely available."
• beachsoul: 100% natural soap, citrus scent, transparent bottle; the refillable bottle idea praised.
• Men's Journal (old formula note): WW felt less harsh on scraped legs; the citronella scent kept bugs away — formula detail UNVERIFIED for 2026.
• SectionHiker: all soaps must stay away from water sources — "biodegradable" does not mean stream-safe.
• Competitor split preserved: a Sept 2026 REI reviewer calls Campsuds poor on grease but fine for hands/body, contradicting its long-standing grease reputation (see the Campsuds dossier).

Long-term durability & warranty-claim reality

• Consumable; the bottle is refillable (50 ml TSA bottle + larger bottles); no durability story beyond the cap/dispenser.
• Warranty: effectively N/A for a consumable; STS's general lifetime guarantee covers the bottle for manufacturing defects.

Version history — year by year

• 2023: Older sizes 40/89/250 ml on stale listings; current sizes consolidating.
• 2024–2025: Stable product; current 50 ml (1.7 oz, TSA-legal) and 100 ml (3.4 oz) bottles; Public Lands $7.95 (size unspecified on listing).
• 2026: Current sizes verified visually (50 ml + TSA-labeled 100 ml); MSRP UNVERIFIED; citronella-scent note appears on older reviews — current formula detail UNVERIFIED.

Head-to-head vs closest rivals

• No soap rivals existed in the prior catalog; two were added in this round:
• vs Campsuds (added this round): Campsuds stronger on grease, harsher on skin, cheaper per oz ($7.99/4 oz); WW gentler, purpose-built travel-size TSA bottle.
• vs Dr. Bronner's Pure-Castile (added this round): Bronner's ubiquitous, cheaper per oz ($7.69/8 oz MSRP), 18-in-1, can dry skin; WW purpose-built travel bottle, citrus scent.

Care & maintenance

• Keep sealed; don't wash directly in streams/lakes (200-ft rule applies even to biodegradable soap).
• A few drops go a long way; refill the 50 ml bottle from a larger bottle to save money.
• Rinse clothes/skin thoroughly — residue dries skin (same as Bronner's).

Buying traps

• Stale 40/89/250 ml listings; verify size when comparing prices.
• Citrus vs unscented variants; Public Lands' $7.95 listing doesn't state size — price-compare by the ml.
• Don't treat "biodegradable" as stream-safe (SectionHiker).

Images

• ../images/sea-to-summit-wilderness-wash-1.jpg — Primary. 50 ml bottle product render, current packaging. 1000×1000 px. Source page: outdoor-food.com (Sea to Summit Wilderness Wash 50 ml).
• ../images/sea-to-summit-wilderness-wash-2.jpg — 100 ml bottle (Sky Blue, AU packaging). 420×549 px. Source page: rangeroutdoors.com.au (Wilderness Wash 100 ml).
• ../images/sea-to-summit-wilderness-wash-3.jpg — 100 ml bottle with new "TSA carry-on compliant" label, visually verified in this pass. 1400×1200 px. Source page: redrockoutfitters.com (3 oz / 100 ml Wilderness Wash). (A MEC CDN image failed validation with 403 and was replaced with this passing source.)

All three validated HTTP 200 with image content type, converted to JPEG via PIL, verified with file.

Research date: 2026-09-20. All prices USD. Prices, availability, and specs should be live re-verified before purchase.

• [research workspace] — Lifestyle: Wilderness Wash bottle on rocks beside a waterhole (official brand photo). 800×505 px. Source page: seatosummit.com (official Wilderness Wash product page).
• [research workspace] — In-use: Wilderness Wash bottle open while washing a camp pot outdoors, "Lifetime Guarantee" overlay. 1500×1500 px. Source: m.media-amazon.com (Amazon ASIN image set).