Keeping bulk and weight down is the key so clothing needs to be versatile. Two sets of long-sleeved shirt and trousers are essential - one for day use and one for night. Ensure both are baggy enough to roll up. Zip-off trousers are a good alternative. You will need something warm such as a fleece or body warmer even for trips to tropical climates. A bandana is invaluable as a head cover, sweat rag and scarf.
Waterproofs Ponchos are the best - they cover you and your rucksack. The design eliminates the need for waterproof trousers and it can be applied for many other uses such as ground sheet, shelter or protective cover. Team up with a Deluxe Tropical Quilt for perfect expedition equipment.
Footwear Take a pair of sturdy, protective boots and a pair of open sandals (see Climates and Terrain before making your final choice).
Clothing Your clothing needs to cater for many climates and situations. Go for 'layering' to deal with colder climates and 'protective' fabrics for dealing with sun, wind, thorns and insects. A full-brim hat gives the best protection for head, face and neck.
Waterproofs A poncho offers the most versatility. Otherwise a lightweight breathable jacket is adequate and gives you a windproof outer layer - add trousers if you know you are spending time in wet/cold climates.
Footwear Waterproof shoes are potentially uncomfortable for long periods in the heat. We would recommend a fully breathable non-waterproof boot combined with a pair of breathable, waterproof socks for complete versatility. A pair of hard wearing sandals is also essential.
Clothing Lightweight clothing can be worn in layers to deal with the varying temperatures of air conditioning, hot buildings and the outside elements. For religious sites, carry a scarf/bandana to cover your head and shoulders. In countries where it is compulsory for women to cover up, consider utilising a long sleeved shirt and sarong.
Waterproofs A lightweight breathable jacket is most appropriate.
Footwear Walking on concrete can give you hot, sore, tired feet so take breathable footwear with plenty of shock absorbency. Add a pair of shock absorbing Sorbathane insoles to ensure complete comfort. Sandals are useful for hot climates although feet tend to become very dirty.
Cotton clothing which stays damp keeps you cooler and helps prevent dehydration. Lighter polycottons and polyamides are comfortable and easier to dry out should they become damp - one outfit of each gives most versatility.
A poncho is the best style of waterproof giving good air circulation - the locals use umbrellas or just accept they are wet! Sandals won't protect you from scorpions, leeches, ants, snakes and plant life. Take very breathable, fast drying boots, US Army jungle boots are the best.
Sun protective clothing is paramount. Nomadic tribes of the desert invariably wear heavy, dark clothing which prevents sweat evaporating too quickly which helps you keep cool. This helps enormously in the prevention of heat/sun stroke. A full brimmed hat combined with a bandana will protect your head, face and neck.
Boots need to be totally breathable. Sandals give your feet an airing in the evenings but uncovered feet in the fierce daytime sun blister very quickly. Your main use for a waterproof would be to act as a windprotector.
Four thin layers give the greatest adaptability in varying weather. It is important to keep your clothing as dry as possible to avoid becoming chilled so take waterproof trousers as well as a jacket. Polycotton or polyamide clothing is the fastest drying.
You will need a hat, gloves and scarf/bandana. Use wool-based socks and waterproof walking boots. 'Walking' sandals are also worth packing. Compeed blister patches are a must in your medical kit.