FAQ

We craft our underwear with 100% Organic Peruvian Pima cotton knit. Peruvian Pima is an extra-long staple fiber celebrated for its silky hand, and natural breathability.

Our fabric is 100% organic Peruvian Pima cotton, from a GOTS-certified mill. VIMERA as a brand is not yet GOTS certified and we're working toward it as we grow.

While supportive elastics are used internally to provide structure, every waist and leg band is encased within Pima cotton jersey, so the elastic doesn't sit against your skin.

VIMERA is conceived in Encinitas, California, and carefully crafted in Lima, Peru. We work in direct partnership with premier, family-owned manufacturing partners specializing in heirloom Peruvian Pima textiles.

If you fall between sizes on our chart, we recommend taking the smaller size. Because VIMERA is cut without synthetic elastane in the body fabric, it does not clamp down or squeeze the body. Choosing the smaller size removes excess ease around the waist and hips so the cotton sits smoothly against your silhouette.

Most underwear blends at least 5% to 10% synthetic elastane throughout the knit and uses exposed rubber bands that cinch the fabric into a tight, gathered gather. Because VIMERA is cut from pure 100% organic cotton with zero elastane in the body knit, and our structural elastics are smoothly encased in cotton jersey, our garments lie flatter and wider off the body. Rather than clamping down or squeezing your frame, the natural fiber gently molds to your silhouette as you move.

Pure Peruvian Pima behaves like living plant fiber. It feels soft and structured when you first put it on, naturally relaxes and molds to your silhouette as you move through your day, and contracts back to its clean form after washing.

We currently offer sizes XS through XL, designed to follow standard US sizing across a hip circumference of 33 inches (84 cm) to 44 inches (112 cm). Consult our Size Guide for detailed conversion tables and measurement tips.

Our fabric is pre-washed to prevent unexpected shrinkage. When hand washed in cool or lukewarm water and laid flat to dry, your pieces maintain their calibrated pattern dimensions. Avoid high dryer heat, which degrades encased elastics and forces premature fiber wear.

Hand wash cold and lay flat to dry. Extra-long staple Pima fibers naturally bloom and soften with every wash, while gentle air-drying protects the encased elastics and ensures the garment holds its shape for years.

Our First Pair Guarantee covers one single pair from your first order. Wear and wash it, and if the fit or feel isn't right, email support@vimera.co within 30 days of delivery. We will dispatch a complimentary replacement size or style, or issue a full refund. You keep the pair you tried (no return shipping required), and we cover the cost of shipping your replacement.

If you order a trio, open and try just one pair first. If you need a different size, keep the tried pair and contact us. We will send you a replacement size for that first pair complimentary. Once you confirm the new size fits, you can exchange the remaining unopened, unworn pairs sealed in their original raw cotton packaging.

Size exchanges on unopened pairs are 100% complimentary: we provide a prepaid domestic return label at zero cost to you. For standard returns requesting a refund on unopened pairs, we provide a prepaid return label, and a flat $6.00 transit fee is deducted from your refund balance.

Simply email support@vimera.co with your order number and request within 30 days of delivery. Our studio concierge handles each request personally, issuing exchange orders or emailing prepaid USPS labels directly to your inbox.