When to Wear The classic colour. Black tones with most cycling outfits. A great option to keep arms protected from UV rays, without having to wear a full undergarment. Product Details Thumbhole option for adult sizes Premium Italian fabric Made from recycled yarn* Soft feel ARPANSA tested UPF 50+ (blocks over 98% over UVA and UVB rays) Light-weight (140gsm) Breathable Quick drying Two-way stretch for perfect fit 90% Recycled Polyamide (Econyl®); 10% elastane (Lycra®) Gentle elastic band at top to hold in place Side seam, incorporating woven Crazy Arms® label Made in Australia * The fabric is made from ECONYL®, a regenerated nylon coming from ghost fishing nets recovered from the ocean, and other nylon waste. Size Guide Crazy Arms are designed to fit like a second skin for athletic activity. This should feel a little tight on first wearing, but will ease to a snug fit after one or two wears. Adult: Regular Fit: for people with a bicep measurement 22-30cm Relaxed Fit: for people with a bicep measurement 32 - 36cm Kids: Small: Kids between 115-135cm high (45-53") Ages 5-8 Medium: Kids between 135-150cm high (53-59") Ages 8-11 Large: Kids between 150-160cm high (59-63”) Ages 12-14 (approx.) For more information on sizing, click here. Delivery – Australia Standard Delivery: AUD $3.25 per pair. Despatched within 2 business days. Delivery 5-10 business days.Express Tracked Delivery: AUD $9.75. Despatched within 1 business day. Delivery 1 business day.FREE SHIPPING for orders AUD $80 and over. International Shipping: see details here or review at check out.