Practical limits: airlines base acceptance on combined length + width + height and per-piece weight. Many carriers treat 158 cm / 62 in and 23 kg / 50 lb as the standard economy thresholds; oversized pieces are subject to size surcharges and may be refused at check-in. Fabric travel containers compress, but compression does not change measured dimensions for carrier policies.
Fee examples and variances: major U.S. carriers commonly charge about $30 for the first hold piece and $40–45 for the second on domestic itineraries; international long-haul fares often include one free piece at 23 kg / 50 lb. Overweight fees typically begin at 51–70 lb and increase steeply above that. Low-cost airlines apply per-piece pricing and tighter size caps–always confirm the specific carrier rule before departure.
Security and restricted items: spare lithium batteries must travel in the cabin and cells over 100 Wh require airline approval; firearms, sporting equipment and large quantities of liquids require advance disclosure and compliance with both airline and local regulations. Keep high-value items, medications and fragile electronics with you to reduce loss and claim complexity.
Packing best practices: weigh and measure at home, photograph packed contents and receipts, use internal compression straps and external ID tags, pad fragile items with clothing or bubble wrap, and use a water-resistant cover for inclement-weather transfers. If a piece exceeds size or weight limits, compare the cost of an excess-fee versus ground shipping to avoid unexpected airport charges.
Carrier size and weight rules that apply to soft-sided holdalls
Follow the airline’s published weight and linear-size limits: most full-service carriers set 23 kg (50 lb) maximum and 158 cm (62 in) total dimensions (length + width + height) per piece stowed in the hold; exceeding either triggers overweight or oversize surcharges.
Typical carrier limits
Full-service international and many domestic carriers – 23 kg (50 lb) standard; 32 kg (70 lb) permitted for certain premium fares or with special handling. Linear dimension limit 158 cm (62 in). Low-cost carriers frequently cap weight at 15–20 kg (33–44 lb) for any paid hold item and may enforce smaller size allowances; wheels, external pockets and shoulder-straps count toward measurements.
Practical compliance tips
Weigh packed item at home with a luggage scale and target 22 kg (48 lb) to keep a margin. Measure fully packed dimensions with straps and pockets fastened, then sum height + width + depth for the linear figure. If overweight, redistribute heavy contents into carry-on or personal item, remove nonessentials, use compression sacks, ship excess by courier or prepay an overweight fee online (typical US$30–US$200 for 23–32 kg; higher charges or refusal possible above 32 kg). For pieces exceeding 32 kg (70 lb), contact the carrier before travel since many require special handling. Keep photos of home measurements and the weight tag presented at the ticket counter to contest discrepancies.
How to secure a soft-shell holdall for aircraft-hold handling
Use a Travel Sentry or Safe Skies-approved lock plus two external compression straps (1″–1.5″ webbing) and a waterproof inner liner to reduce zipper failure, impact damage, and tampering.
Internal organization: Place fragile items in the center, wrapped in soft garments or bubble wrap; surround them with rolled clothing to create a 3–4″ protective buffer on all sides. Keep heavy items low and close to the base to lower the center of mass. Use modular packing cubes or foam inserts to prevent shifting; secure cubes with small Velcro straps or internal webbing.
Zipper reinforcement: Thread a short stainless-steel cable or nylon strap through all zipper pulls and fasten that cable with a TSA-approved lock. Adhesive zipper-protectors (rubber sleeves) can prevent teeth separation under pressure. Avoid relying on a single zipper pull–use two opposite pulls joined by the cable.
Exterior protection: Apply two crossing external straps (one lengthwise, one widthwise) with quick-release buckles; choose straps rated for airline handling (polyester webbing, stitched ends, 1″–1.5″ wide). Use airport-grade stretch-wrap or a fitted travel cover for full-shell abrasion resistance; if using plastic wrap at the airport, request a single-wrap application to avoid inspection issues.
Identification and tamper evidence: Attach a bright, unique ID tag externally and another inside a sealed internal pocket. Use a tamper-evident strap (numbered seal or tamper tape) across zipper area; photograph both exterior and interior contents before check-in and keep photos with travel records.
Valuables and documentation: Place high-value electronics, jewelry, medication, and irreplaceable documents in carry-on or on-person. Keep receipts and serial numbers on a digital photo and printed copy in a separate compartment of the holdall and in carry-on.
Post-handling actions: Inspect the shell, straps, zippers, and seals immediately at the airline service desk if damage or tampering is visible; file a report before leaving the airport claim area and retain the report number and agent name for any claim process.
Packing policy: permitted and prohibited items inside a soft-sided travel sack placed in the aircraft hold
Keep spare lithium cells and portable power banks in the cabin; do not pack them inside a soft-sided travel sack sent to the aircraft hold.
Common items acceptable for placement in the aircraft hold
Clothing, footwear, toiletry containers (no 100‑ml restriction applies for hold), non-perishable food, hard-sided sports equipment (when properly enclosed), and most toiletries that contain water or alcohol below 70% ABV. Alcohol between 24% and 70% ABV is allowed in checked carriage but limited to 5 litres per passenger and must be in retail packaging; beverages above 70% ABV are prohibited. Sharp household tools and knives may be stored in the hold if sheathed and secured. Household toiletries containing aerosols are permitted only when the product is non‑flammable and the container has safety caps; check airline specifics.
Strictly prohibited or restricted items for the aircraft hold
Spare lithium batteries (including power banks) and loose lithium cells must travel in the cabin; devices with installed lithium cells may be placed in the hold but switch them off and protect against accidental activation. Batteries above 100 Wh require airline approval; >160 Wh are forbidden on passenger aircraft. Smoking devices and e-cigarettes must remain in the cabin. Explosives, incendiary devices, oxidizers, corrosives (including bleach and strong acids), and flammable liquids such as paints, paint thinners, gasoline, and lighter refills are not permitted. Compressed gas canisters (butane, propane, oxygen cylinders) are prohibited unless prior airline authorization and proper certification for medical use are obtained. Self-balancing scooters, hoverboards and other personal transport units with embedded lithium batteries are generally banned from both cabin and hold.
Firearms and ammunition may be transported in the hold only after declaration at check-in, unloaded, and secured in a locked, hard-sided container that meets the carrier’s policy; ammunition must be in approved packaging and quantity limits vary by airline and destination–confirm rules in advance. Controlled substances, certain agricultural products, live animals and protected plant/animal parts require prior permits and customs declaration; undeclared items risk fines and seizure. Valuable, fragile or irreplaceable items – electronics, passports, cash, jewelry – should remain in the cabin rather than placed in the hold.
Always verify carrier-specific and destination-country regulations before travel, declare restricted items at check-in where required, and keep documentation (battery Wh ratings, medical oxygen prescriptions, firearm declarations, receipts) readily accessible to avoid delays or confiscation.
How to avoid extra fees for oversized or overweight travel packs
Weigh travel pack at home with a handheld scale; aim for 22.5 kg (49.6 lb) or less to remain under the common 23 kg (50 lb) economy limit and leave a 0.5–1 kg margin for scale variance.
For long-haul or premium cabins plan around 32 kg (70 lb) maximum per piece and 158 cm (62 in) linear dimension (length + width + height); measure after packing to catch oversized-length risk before arrival at the airport.
Use compression cubes and vacuum-style packing for clothing; remove retail boxes, extra hang tags and bulky packaging for electronics or toiletries to shave grams quickly. Replace heavy toiletry containers with travel-size refillable bottles.
Shift weight into wearables and personal item pockets: wear hiking boots, heavy jacket, and a filled travel vest; move dense items (chargers, batteries, camera bodies) into your carry-on or personal item to reduce piece mass.
Carry a compact digital luggage scale with 0.1 kg (0.2 lb) resolution and check weights immediately after final packing and again at the airport counter; target a packed weight 1 kg below the limit to avoid counter surprises from different scales.
Pre-purchase excess or oversized allowance online when anticipated; online fees often run lower than airport counter surcharges (typical examples: overweight $50–$150 pre-purchase vs $100–$300 at counter). Confirm exact fee schedule on the carrier website for your route.
When transporting bulky equipment (sports, musical instruments, camera rigs), compare three options: redistribute across travel companions’ allowances, ship via courier with door-to-door tracking, or buy a specific oversized-piece permit in advance. Run cost comparisons before departure.
Quick checklist: weigh empty pack; pack prioritizing light/high-value items; weigh loaded pack; remove or redistribute to reach ≤22.5 kg (domestic economy target); measure linear dimensions and repack if >158 cm / 62 in.
Materials and security features to minimize damage and theft
Pick a travel sack made from 1680D ballistic nylon or 1000D Cordura with a TPU laminate and fully welded seams; combine that with a reinforced base panel (3–5 mm closed-cell foam + 600D PU-coated fabric) and water-shedding zippers for the best balance of abrasion resistance and impact protection.
- Fabric specs
- 1680D ballistic nylon – highest abrasion resistance for rough handling; use for the main shell.
- 1000D Cordura – lighter, good tear resistance for side panels and pockets.
- TPU or PVC laminate with taped/welded seams – prevents soak-through and reduces seam failure.
- Ripstop 210–420D nylon with DWR coating – suitable for lightweight carry and rain protection when weight matters.
- Closures and hardware
- YKK AquaGuard or Vislon zippers (#10 or larger where load-bearing) with dual sliders that accept a small padlock.
- Bar-tacked stress points and boxed handles rated for 200–300 kg static load at haul points.
- Welded or riveted external rails/feet to reduce abrasion on the base.
- Theft-resistance components
- Integrate a thin, stainless-steel braided cable (3–4 mm) routed through reinforced channels so zipper pulls can be looped and locked; cable length 60–120 cm for securing to fixed points.
- Use TSA-accepted combination locks on exposed zipper pull holes and a secondary cable lock for cross-body security.
- Hidden or laminated RFID-blocking passport pocket with internal zipper – place passports and credit cards here rather than in external pockets.
- Tamper-evident numbered seals on exterior compression straps for long transfers; photograph seal numbers before transit.
- Padded protection and internal layout
- Dedicated foam-lined compartment for laptops/tablets with 10–20 mm high-density foam and a Velcro strap to prevent shift.
- Removable camera cube or modular foam inserts for optics and electronics – cut to fit lenses/drone body to limit movement.
- Compression straps inside to immobilize soft contents and reduce impact transfer to fragile items.
- Construction details that extend life
- Double-stitched main seams with bartacks every 2–3 cm at high-stress junctions.
- Seam reinforcement tape on interior and external abrasion panels at corners.
- Replaceable wear strips on base; choose designs that allow swapping the strip without sewing.
- Operational recommendations
- Keep high-value electronics and batteries in a personal carry item; for items moved in the main carrier, use a visible inventory photo and list serial numbers.
- Use bright or reflective ID markings and a unique tag to deter opportunistic theft and speed recovery if misplaced.
- For photography or UAV equipment, consult handling and market advice at are drone pilots in demand before selecting protective inserts.
- Store a compact weatherproof umbrella in an external quick-access sleeve – consider models such as best silver umbrella skullgirls for compactness and durability.
- Pre-trip checklist (quick, measurable)
- Inspect main shell for cuts/abrasions; replace or patch if >5 cm tear present.
- Verify zipper slider holes align for locking; test lock fit and combination twice.
- Confirm foam inserts compress <10–20% under load to ensure shock absorption.
- Photograph and log serial numbers for high-value items; attach tamper-seal and note its ID.
Follow these specifications to reduce punctures, seam failure and opportunistic theft while keeping pack weight within practical limits for handling and transport.