Gear pulled out of winter storage in March or April is rarely ready to go. Down sleeping bags have been compressed for months and need loft restoration. Tent flys may have developed mildew in a damp basement. Liquid fuel stoves have dried-out O-rings from sitting idle. Ski jackets are coated in chairlift grime from an entire season. The spring gear reset is a ritual that, done properly, adds years to equipment life and prevents the miserable discovery of damaged gear at the trailhead.
This checklist walks through every major gear category with specific cleaning tasks, estimated time, and the signs that something needs professional attention or replacement.
Tent and Shelter (30-45 minutes)
Pull the tent out of its stuff sack. Unfold the fly and body completely and spread them out where you can see the entire surface area. Look for:
Mildew inspection. Mildew appears as black or dark green spots, often in a pattern following fold lines. It smells musty and earthy. If you find mildew on a PU-coated tent floor, set up the tent, fill a spray bottle with a solution of 1 part white vinegar to 4 parts water, spray the affected area, and wipe with a soft cloth. Let it dry completely before repacking. Mildew permanently damages the PU coating -- once it appears, the waterproofing in that area will be compromised. For nylon or polyester fly fabric, the same vinegar solution works. Do not use bleach on tent fabric -- it degrades both nylon and polyester fibers.
If your tent was stored damp and smells strongly of mildew, you may need to soak the entire tent body in a bathtub with Nikwax Tech Wash to kill the odor. After washing, thoroughly dry the tent -- ideally by setting it up outdoors in a shaded area for a full day.
Seam tape check. On older tents (3+ years), inspect the seam tape on the inside of the fly and floor. Peeling or flaking seam tape means it is time to reseal those seams with a liquid seam sealer like Gear Aid Seam Grip WP. Lifting seam tape on a tent less than 2 years old may be a warranty issue -- contact the manufacturer (Big Agnes, MSR, NEMO, REI Co-op) before attempting repair.
Zipper function. Run every zipper to its full extent. Sluggish zippers can be improved with Gear Aid Zipper Cleaner and Lubricant. Do not use WD-40 on tent zippers -- it attracts dirt and stains fabric.
Pole shock cord. Tent poles that do not snap together smartly have worn-out shock cord. Replacement shock cord (3mm diameter for most backpacking tents, available from Gear Aid or any outdoor retailer) costs about 5 USD and takes 20 minutes to restring. Unknot one end of the existing cord, pull it through the first pole section to keep the sections in order, thread the new cord, and tie it off under moderate tension -- tight enough that the sections connect without manual alignment, but not so tight that the pole is under constant compressive stress.
Sleeping Bags and Quilts (20 minutes per bag)
Remove sleeping bags from their storage sacks. If they have been in compression sacks all winter (which they should not be -- see storage recommendations in a companion article), loft restoration becomes the primary task.
Air them out. Hang sleeping bags loosely over a clothesline, a door, or a drying rack for 24 hours in a dry, ventilated space. This alone restores significant loft if the down was simply compressed, not dirty.
Wash if needed. A down sleeping bag that has been used for 20+ nights without washing needs a proper cleaning. Use a front-loading washer at a laundromat (home machines are typically too small for a 0F or 20F bag), Nikwax Down Wash Direct or Grangers Down Wash, and the delicate cycle with an extra rinse. Dry on low heat with 3-4 clean tennis balls in the dryer to break up down clumps. This takes 2 to 3 hours. Do not rush the drying -- any remaining moisture promotes mildew and down clumping.
Synthetic insulation. Synthetic bags (Therm-a-Rest, Mountain Hardwear Lamina, The North Face Cat's Meow) wash similarly but are more tolerant of home machines. They dry faster than down, typically 45-60 minutes. Do not use tennis balls -- the continuous filament fibers do not clump.
Check the zipper. Snagging zippers on sleeping bags are a chronic annoyance. If the zipper is catching the draft tube fabric, run a candle or a bar of dry soap along the zipper teeth. For a zipper that separates after being closed, the slider may be worn -- a replacement slider from YKK can be installed with pliers and costs about 3 USD.
Insulated Jackets: Down and Synthetic (30 minutes total)
Wash down jackets. A Patagonia Down Sweater or Arc'teryx Cerium LT that has been worn under a shell all winter is coated in body oils and sweat, which degrade down loft. Wash with Nikwax Down Wash Direct in a front-loader on gentle at 30C. Dry on low with tennis balls. Expect the drying cycle to take 90+ minutes. Check the dryer lint trap -- a surprising amount of down can escape through tiny shell fabric seams.
DWR reactivation. After washing, the DWR on the jacket face fabric needs heat reactivation. Tumble dry on medium for an additional 20 minutes after the jacket is fully dry. If water still does not bead on the shoulders and hood (the highest-wear areas), apply a spray-on DWR treatment like Grangers Performance Repel Plus and dry again.
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Synthetic insulated jackets. The Arc'teryx Atom LT and Patagonia Nano Puff use synthetic insulation (Coreloft and PrimaLoft Gold, respectively). These are simpler: wash with standard technical wash, dry on medium heat. Synthetic insulation does not clump, so no tennis balls are needed. The DWR reactivation process is the same as for down.
Rain Shells and Hardshells (20 minutes)
GORE-TEX and similar hardshell jackets (Arc'teryx Beta AR, Patagonia Triolet, Outdoor Research Foray) need washing after a winter of use. Body oils degrade the DWR and eventually the membrane itself if left in contact with the face fabric long enough. Wash on a technical cycle at 30C-40C with Nikwax Tech Wash or Grangers Performance Wash. Run an extra rinse cycle to ensure no detergent remains in the fabric. Tumble dry on medium heat for 20 minutes to reactivate DWR. If beading is still poor, apply a wash-in or spray-on DWR treatment.
Footwear (30 minutes per pair)
Leather boots. Winter leather hiking boots (Zamberlan, Asolo, Lowa, Scarpa) need cleaning and conditioning after exposure to snow, road salt, and wet conditions. Remove laces and insoles. Brush off dried mud with a stiff nylon brush. Clean with Nikwax Footwear Cleaning Gel and warm water. Let dry at room temperature away from direct heat -- radiators and blow dryers crack leather. Once dry, apply a leather conditioner: Nikwax Waterproofing Wax for Leather (water-based, maintains breathability) or a traditional wax like Grangers G-Wax. Do not over-condition -- once or twice per year is sufficient for most boots.
Trail runners and approach shoes. Mesh trail runners (Altra Lone Peak, HOKA Speedgoat, Salomon Speedcross) pick up trail dust and dry mud. Remove insoles and laces, hose off loose dirt, and wash in a bucket with warm water and mild soap. Scrub stubborn mud with a soft brush. Air dry with newspaper stuffed inside to absorb moisture and maintain shape. Replace the newspaper after 4 hours. Never machine wash trail runners -- the agitation damages midsole foam and synthetic uppers.
GORE-TEX lined footwear. Boots and shoes with GORE-TEX membranes require the same cleaning approach but absolutely must not be dried with direct heat. The membrane can delaminate at temperatures above 50C.
Backpacks (20 minutes each)
Exterior cleaning. Backpacks (Osprey, Gregory, Hyperlite Mountain Gear, ULA Equipment) accumulate trail dust, sunscreen, sweat, and food residue on shoulder straps and hip belts. Empty all pockets, shake out debris, and vacuum the interior. Fill a bathtub or large tub with lukewarm water and Nikwax Tech Wash. Submerge the pack and agitate by hand for 10 minutes. Pay extra attention to shoulder straps and hip belt padding where sweat and sunscreen accumulate.
Do not machine wash a backpack unless it is a frameless ultralight pack specifically labeled as machine washable. The agitator can bend internal frame stays and rip mesh pockets.
Zipper maintenance. Backpack zippers under load (lid, main compartment) need the most attention. Apply Gear Aid Zipper Cleaner and Lubricant to any zipper that does not run smoothly. A zipper that fails on a multi-day trip effectively ends the trip.
Frame check. For internal frame packs with removable stays (Osprey Atmos, Gregory Baltoro), pull the stays out and check for bending. Aluminum stays can be gently bent back to their original curve. Carbon fiber or composite stays that are cracked must be replaced -- contact the manufacturer for a replacement part.
Cooking System (30 minutes)
Follow the detailed camp stove maintenance guide for MSR, Jetboil, Optimus, and Primus stoves. The spring checklist summary:
- Clean burner ports on all stoves
- Replace O-rings in liquid fuel stove pumps (MSR Expedition Service Kit)
- Check fuel canister condition and discard any with rust
- Clean pot and pan surfaces with a non-abrasive scrubber
- Inspect fuel lines for cracks or stiffness
- Test-burn all stoves outdoors before packing
Water Treatment (15 minutes)
Filters. Hollow fiber filters (Sawyer Squeeze, Katadyn BeFree, Platypus QuickDraw) need a backflush to clear trapped sediment. Use the included syringe with clean water to force water backward through the filter fibers. If a Sawyer filter has been frozen (even once), it is compromised -- the ice crystals rupture the hollow fibers, and there is no way to verify integrity. Replace it. A frozen filter costs 30 USD; giardia costs weeks of misery.
Chemical treatments. Aquamira and Potable Aqua tablets expire. Check the date. Chlorine dioxide tablets lose potency after expiration and should be replaced.
The Full Spring Gear Audit
The cleaning process is also your annual gear audit. As you handle every piece of equipment, ask:
- Does this still fit my needs? Gear that sits unused for two seasons in a row should be sold or donated.
- Is this worn beyond repair? Holes in tent mesh, delaminated pack liners, and cracked boot midsoles are rarely worth repairing.
- What broke last season that I forgot about? The buckle that half-cracked on day three of a trip in October is now your chance to replace it before it fully fails in July.
Budget about 4 to 6 hours for a full gear cleanup and audit covering tent, sleeping bag, jacket, shell, boots, pack, stove, and filter. Doing it in one concentrated weekend session is more efficient than spreading it across weeks. The reward: a season of trips where gear performs reliably, and not a single trailhead discovery of moldy tent fabric.