Here’s a focused guide to finding comfortable wireless bras that work for larger cup sizes (roughly D through K), plus a few specific models/brands you can find in Australia.

What to look for in a wireless bra for D–K cups

• Wide, supportive underband and a firm elastic frame — this replaces the stabilising role of an underwire. (Supports containment and lift.) (brasinparadise.com.au)
• Multi-part (seamed) cups or inner support slings — these shape and centre the breast without a wire. (downundersl.com)
• Wide, well-padded adjustable straps and a high-back (broad back wings) — redistributes weight and reduces shoulder digging. (Glamorise.com)
• Powermesh or reinforced side panels to prevent side spillage and smooth the silhouette. (downundersl.com)
• Proper band fit is critical: a firmer band often gives most of the support. Consider sister sizes if you need more lift or comfort. (illusionslingerie.com.au)

Recommended brands & specific wireless styles (available in Australia)

• Elomi (wire-free nursing/soft-cup styles such as Elomi Molly / Beatrice) — known for full-coverage, multi-part soft cups and wide bands in large-cup ranges (many sizes up to K/KK). Good choice for full support and smoothing. Check Australian lingerie stores that stock Elomi. (bravalingerie.com.au)
• Goddess / Panache / Curvy-focused brands — offer wireless and high-coverage designs made for large cups with reinforced structure and wide straps; often sold in full-figure boutiques in Australia. (illusionslingerie.com.au)
• Glamorise / Playtex / Warner’s — good budget-friendly wireless options that are specifically designed for large bust support (sizes advertised up to J/K on some models) and receive strong customer reviews for everyday comfort. These are widely stocked online and at mass retailers. (Glamorise.com)
• Amoena / specialty comfort brands — offer pocketed, soft-cup and post-surgical styles with soft fabrics and wide bands; useful if you need softer moulding or are sensitive to seams. (brasinparadise.com.au)

Practical model suggestions (examples to search/try in Australian stores)

• Elomi Molly (wire-free nursing/soft-cup style) — full coverage, wide band, sizes through K/KK in retailer listings. Good starting point for daily comfort with shape. (bravalingerie.com.au)
• Elomi Beatrice (wire-free multi-part soft cup) — inner support slings and powermesh sides for containment. (downundersl.com)
• Glamorise MagicLift series — wire-free design built specifically for large busts (advertised to very large sizes) and several everyday/support styles. (Glamorise.com)
• Playtex 18-Hour Full-Coverage Wireless (popular comfort pick with many positive user reviews) — good if you want a widely available, budget-friendly option. (realsimple.com)
• Warner’s / Warners Cloud 9 or similar — widely-reviewed wireless comfort bras praised for softness and fit. (people.com)

Fit & shopping tips (to improve comfort)

• Get measured (band and bust) by a fitter experienced in full-cup sizes — many Australian boutiques (and online stores with bra-fitting services) specialise in D+ sizing and can recommend sister sizes. (illusionslingerie.com.au)
• Try full-coverage, seamed cups (not just moulded seamless bralettes) for better containment in larger cups — they often give more shape and less spillage. (downundersl.com)
• If straps dig in, try a size up in the band + smaller cup (sister size) or look for bras with extra-wide cushioned straps. (illusionslingerie.com.au)
• Consider non-wired bras with inner support slings or firm underbust bands — these give the best combination of comfort and support for large cups. (downundersl.com)

Where to buy in Australia

• Specialist full-figure retailers and boutiques (many list Elomi, Panache, Goddess, Amoena). Examples: Brava Lingerie, Bras in Paradise, Illusions Lingerie — they also offer fitting help and stock larger cup ranges. (bravalingerie.com.au)
• Large online marketplaces and brands (Glamorise, Playtex, Warners) for budget wireless options — read reviews for size/fit before buying. (Glamorise.com)

Quick summary (best next steps)

1. Get measured (band + overbust) at a full-figure lingerie store. (illusionslingerie.com.au)
2. Start by trying Elomi Molly or Beatrice (wire-free Elomi styles) and a Glamorise/Playtex wireless support model to compare feel and containment. (bravalingerie.com.au)
3. Look for wide underbands, seamed cups or inner slings, and wide straps — return/exchange policies are useful because fit varies by brand. (downundersl.com)

If you’d like, I can:

• Look up specific retailers near your postcode in Australia that stock these models, or
• Pull up a short comparison (prices, available sizes) for 3–5 specific wireless models and where to buy them.

Which would you prefer?